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3. 72

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12 56 F 72 (?3 17 12 ) 12 *: 3.0 :

27. 51 :
392
g = 9.8 m/s2
h = 6.6 × 10-34 JPs
c = 3.0 × 108 m/s
kB = 1.38 × 10-23 J/K
R = 8.31 J/K.mol
NA = 6.02 × 1023 0X
= 1.414
= 1.732
= 2.236
= 2.646
ln 2 = 0.693
e = 1.6 x 10-19 C
G = 6.67 x 10-11 m3/(kg.s2)
= 3.14

28. 56.

29. D
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54. :? 3 m
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79. ##)
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81. (

82. # ) '/#
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v1 = 20 + 2(1) = 22 m/s

83. (

84. #4!#/ s1 = (u + v1)/2 t
s1 = (20 + 22)/2 (1)
s1 = 21 m
124!#! t = 1 s D# t = 2 s !'$0) !(!# a = 0 m/s2
#!!6!#$'! v1= 22
m/s

85. (

86. #4!#/ s2 = v1t
s2 = 22 (1)
s2 = 22 m
124!#! t = 2 s D# t = 3 s !'$0) !(!# a = 4 m/s2 !6!$ v2 = v1 = 22 m/s
!6! ! t = 3 s v3 = v2 + at
v3 = 22 + 4(1) = 26 m/s

87. (

88. #4!#/ s3 = (v2 + v3)/2 t
s3 = (22 + 26)/2 (1)
s3 = 24 m
124!#! t = 3 s D# t = 4 s !'$0) !(!# a = -2 m/s2 !6!$ v3 = 26 m/s
!6! ! t = 4 s v4 = v3 + at
v4 = 26 + -2(1) = 24 m/s

89. (

90. #4!#/ s4 = (v3 + v4)/2 t
s4 = (26 + 24)/2 (1)
s4 = 25 m

91. (

92. # ) 4!# 4 ! s = s1 + s2 + s3 + s4
s = 21 + 22 + 24 + 25
s = 92 m
12 3.
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a =

93. 1. v = u + at
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t
3. s = ut +
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94. 4
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95. 7$ t
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97. #
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98. 4 !%
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101. (

102. #'
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103. 1. A

104. B 2. A

105. C
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106. C 2. A , B , C

107. D
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116. $D#1)/!(!' !(!6! '
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117. $
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130. /#2

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132. # ($)
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133. /$

134. )*/$ #$

135. 4#
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136. !#! #
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137. (

138. # 50 $1)/ ! 2.5 !

139. $'#

140. !6!$ u s =
t
50 =
(2.5)
u = 40 m/s
!# g v = u + gt
0 = 40 + (-g)(2.5)
g = 16 m/s2
12 3.
v = 0 0 # 0 , t = 2.5 s
s = 50 m
u
a = g = ?
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+ u
+ s
- s - g
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141. #
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142. $
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143. # $ 2 *..+
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144. +%
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147. :!#D # !(!6!$ 15
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162. /$
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163. *
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164. m/3
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165. )
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166. 5C8(: '#'/!6!#

167. 0 # 0D#R1

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170. 5C m
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171. $

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174. 5C 3 ')

175. !6!'#

176. #!'/# 5C v1 , v2

177. v3 $%'
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179. 'N!#
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180. $W0'V:9$'

181. N!#1'#:

182. 'N!
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183. 5

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186. $#N!#9$'
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187. 2 SD #
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188. '$6!'

189. $#) 58$#'
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191. ! 3 $#) 5
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196. 1. $#
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197. '
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198. = N!#9$''#

199. mvx =
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200. EK =
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201. EK3 =
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202. p = mvx
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203. p3 =
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12 4.

204. Tips
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vx = ux
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224. 011
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225. *: 100 a*

226. / *;31=

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230. ::#$)

231. 1. 3 2. 4

232. 3. 5 4. 6
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233. /$
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234. *
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9 m
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235. 5C )4
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236. 'N!#
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238. $#N!#9$'' 0 !('#'/19$'
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239. '
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240. !'
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241. 9$''#D#

242. m1v1 = m2v2
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243. ) !(!6!#$'! 1

244. 1)/)
# (
)
m1 , m2

245. v =
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246. 100
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247. 2x = 9-x
x = 3 m
12 1.
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248. Tips
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249. 9$' p = mv
v
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250. %%
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260. g#
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261. #$?*
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262. ;
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263. #$
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264. ;
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265. /$
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266. 52 (!##55
V_A = ? V_B = 0.6V
W
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FB_A
#B
#! A !
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267. #! A (! B
5 #! A

268. B
#($'!') FB_A = FB_B = W
#A V_Ag = #B V_Bg
1.2#B V_A = #B 0.6V
V_A = 0.5V
12 2
Tips
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mg FB
V
mg FB
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269. 12
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270. B N5W'#5
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271. !'$0!
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272. !'$0!
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273. 63. ;3A*C

275. : 2

276. # r *: R 2

277. A*) 2

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279. =1
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280. # r ) v

281. )

282. =1
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283. # R )56)9
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284. /$
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285. A1v1 = A2v2
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286. v2 = %'
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287. 10#
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288. '$ #D/
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289. '$6!#/%
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290. 5

291. 5 $'
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292. 3
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A1
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P2
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h2
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:
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293. 64. **

295. ?0iAja

296. )??3
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297. V %*
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298. /$

299. 2
4#
1'##:R (#90#
k 5C1'### 1 90
EK =
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) # PV = N KBT
'#'/ KBT = -.
0 = -.
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(1)

300. EK =
-.
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12 4
%# = Av
k n 9
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5$ V
EK = ?

301. Tips
#
%9!* ( EK )
1%
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2 (J)
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**%
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12
1'##:#
k
! m '#5p 02M T 5C (
k 1 9! M)
1. mRT 2. MRT
3.
2
RT 2.
2
RT
($ 3.)
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NKB T
=
PV ( PV = NKT )
B = nRT ( PV = nRT )
- T # P
@2 #
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C n = %!9034
9!9345
= !
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303. 65. 3)/
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304. 5
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305. 1
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308. )56
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309. 1.
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324. %
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344. m
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3. 420 4. 695
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345. /$
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!(!) 5C 8
9 , 8
9 , :8
9 , ;8
9 , ...
9 = 1
= 4 m
12s: 1 8
v = f3
'#'/ f =
8
f = 9
9
f = 85 Hz
9 = 1
= 9
12s: 2 8
m
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8
1 m
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=
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346. f = 9
9
f = 255 Hz
A 1 m
=
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%
C[#[ !!!#!
%

349. @
3!

350. CC!%
!+
2$!?2! 2?$

351. $
C!%
!+?
!
! 3#$]?!! 2
!
- $
3#$? #3#$]?
12
(#!(!) ? $#%5% ' 1##

352. 5(5p'/# #
!(!#$#'
1. @
9 2. @
3. ? 4. @
($ 1.)
,, !#
1
,, !#
,.1

353. 67.

354. *
*/$
2*#$#

355. ::

356. :
* 2 × 10-4 )

357. )
l#$
?* 80 )m)

358. a3
1
*3#$ 2
?$
*
l 4.0
**)

359. */$
#$*
##$a)

360. 1. 400 2. 500
3. 600 4. 700
)

361. /$
4#
!5$9(:
$
#
? = ?
# $
!#) d B
!# A2
= n3?

362. 2x10-4 9CDE
FG = 23?
? = 5x10-7 m = 500 nm
12 2
n = 2
d = 2x10-4 m
R'
#
!# A0
L = 0.80 m
x = 4x10-3 m

363. Tips
)
1) 0
$ (!
$ )$$#
a ) d
#
!(!) ?
R'
#
!# A1
) N1
!# A0
L
x
a = !!## $ (!
d = 4### $ )$$#
L =

364. (

365. !# $ )$$#D#R'
#
x = $%
#8(:##
) )
!# 12 0D ##
!##
) L d ) ( [ sin I tan
1. 1) 2.
( A0 , A1 , A2 , _ , An) (N1 , N2 , N3 , _ , Nn)
d sin = n?
d B
= n?
n = 0, 1, 2, 3,
a sin = n?
a B = n?
n = 1, 2, 3, x
(N1 , N2 , N3 , _ , Nn) ( A0 , A1 , A2 , _ , An)
d sin = (n -
)
d B
) n = 1, 2, 3, x
= (n -
a sin = (n +
)
a B
= (n +
)
n = 0, 1, 2, 3,
12
8DV!(/(! 9(4
#%
# #N$$# 12,000 /S6$$
1!
!#
%0 20H '
!# !(!) #
#!(9$ (sin20 =
0.342)

366. 1. 285 2. 342 3. 364 4. 410
($ 1.)
68. 12 9*2
1 1
1
# 11
.
1

367. #$92)*/$ 5

368. :?0ADDn9ADDnA1;)2

369. )*/$ #$1
5

370. :?0ADDn
2

371. #$92)*/$ 5

372. :?0)56

373. 0

374. 1. ADDnC1
3#
;
lC)
. ADDnX93

375. *#)56
1.

376. 2.

377. 3.

378. 4. 0
)

379. /$
ADDn
4#
. $# ##
# 4) 5

380. 0y yD/'$%
# D/' #
) #5

381. 0y
. $#
#y# y

382. 8#10# )$
!'8##
. $# M(#
#y '#'/ yM(#$'!%5C8(:
12 4

383. Tips
.%$??@
E -
F +q
d
A B
VA VB
+
+
+
-
-
VB - VA = Ed
$+!ZZ` 7$%
+!ZZ`
$3#$ B # A ( VB b VA ) ZZ` E [
$$!?!

384. 1$
!3#$ A B

385. VB b VA = J5KL
y05

386. 0 + y05

387. 0 -
12
M = NO
M = MPO
M = Ed
A
2$
(Q) VA = 0 VB = JRKL
M
[
!$
$+!ZZ`3#$

388. !3 1 $
!
3#$*
$??@
- +
- ZZ`+!+!ZZ` 2(+)+!ZZ`3(-)
E
y) #
N$'!%
y#$'!%!#S' y#$'!%#

389. !$#
. y8 8'(:y #5('#8'(:y$ %
. 8## yN$!'# y
. 8'(:y5C! , )5C8(:
1.

390. 2.

391. 3.

392. 4. 0
($ 3.)
+%==?,-, @+
%==?,-, @+
69.
0X5

393. :?0 6.4 × 10-19 * * 1.0 × 10-20 a*

394. 2)

395. = 2.0 × 106 )

396. /#
)12)*=$3) 1 1.0 )*

397. 5 1f:#$ 0X3*
)*/$ #$;
l

398. )*/$ #$)

399. $2 1a)#$)5*#$A5)#$ a*

400. -)

401. /#
1. 0 2. 2.0x10-14
3. 2.8x10-14 4. 4.0x10-14
)

402. /$
ADDn *:)*= 1
4#
125$9(: )
60M

403. ) 5C!# !(
#
6 F = qvB %
5C
# 8(:# 9('$6!#$'!''$6!2

404. (#

405. v = 2.0x106
u = 2.0x106
m = 1.0x10-20
F
ST = UV - UW
5 9$' 5 (5 Sp = * mu (1

406. # mu = mv)
Sp = * x1.0x10-20x 2.0x106
Sp = 2.8x10-14 kg-m/s
12 3
B
v
F
+q v F
68$'/#R

407. V
X 90H
12
9(: 69 0M

408. ) 5C!#'8!9#
1. 2.5x104 m 2. 3.1x104 m
-UW
UV
Tips
,*B
*$??@)C
B

409. @ ZZ` q

410. %?
#$4! B #
*1!!? #$4!
#

411. ! #$4!

412. ##$4! F = qvB !3$
@ 3+!

413. %
@ !
- +%
##$4! F CE!e

414. %
E

415. %
*
* +%
4
v
*
*
#$4! B *
#$

416. E*+%
# F !3$
@ ?
! (+q) !
@ ? (-q) E$
+%
# F %!?+E*%
*
#$

417. v
F
F
+q v
68$'/#R

418. V
X 90H

419. 3. 4.3x104 m 2. 5.1x104 m
($ 2.)
70. ?

420. 5 )

421. ?: A2#$ 5

422. 10 [ 25 [
A
20 [
2 [ 5 [
1. 0 2. 0.2
3. 1.4 4. 2.9
)

423. /$
ADDn *:)*= 1
4#
125$9(: 5C!#
! 9$:
$! Y
= '
Z
= :
:
5 = 5
E
5C!#: 0

424. N$'!$ 20 [
12 1
'A
,'%==?

425. 6
$%, #B
,-
+ -
12 V

426. Tips
!
%
c
I1
I2
I1
R2
R1
a b
RR 4 3
d
I
R5
I2
+ -
I
$!# 7$ R5 !
$
%* #
$ Vc = Vd
* Vac = Vad
I1R1 = I2R3 --- (1)
# Vcb = Vdb
I1R2 = I2R4 --- (2)
(1) (2)
]^
]
= ]
]_
12
9(: 70 #

427. y!#!#
1. 2.05 A 2. 3.10 A
3. 4.50 A 2. 5.00 A
($ 1.)

428. / ]^
]
= ]
]_
1+ ' %
%==?($
71. ?

429. 5 2)=5

430. :?0#?0 5 Aa

431. D

432. 2#1 2 a*a *:

433. )*/$ ADDn
1
*
3))56 V = 20sin100t )/$ 3a*)

434. )=5

435. :?0 ?: A2#$a*
V
R
C

436. 1. 10 2. 10* 3. 20 4. 20*
)

437. /$
ADDn *:)*= 2
4#
125$9(: 52'/# (!##55
Vrms C = ?
R = 2x103 [
C = 5 qF
v = 20sin100t
#) y#
#% v = 20sin100t
) (' v = Vm sin`t

438. Vm = 20

439. ` = 100
!$$'!65

440. 0 XC =
ab =
C:CDc = 2x103 [
#%y $'!65

441. 0 C

442. $'!$ R $'
0
!$! Z = de f gb
Z = )*hij f *hij
Z = 2* x103 [

443. y N C

444. R

445. ''
Irms = .klm
n
Irms =
ol
'
n
Irms =
'p
'
CE
Irms = 5x10-3 A
!$#8'(:('#N#$'!65

446. 0 Vrms C
Vrms C = Irms XC
Vrms C = 5x10-3x2 x103
i

447. Vrms C = 10 V
12 1
Tips
R L C
1. *
!$! Z = )e f gBrgb
I
R C
V
L
I
$
R
3 L #
!4? C #??
! !# ZZ`7$
R , L # C
$! #$!?!# ZZ`
%
*
I = V/Z ( $
$+! V VR + VL + VC )
2.
VR = VL = VC
IL
C
R
L
IC
I I
V
IR
!$! s
= d
' f
tu r
tv
$
R
3 L #
!4? C #??%
$+! $
R , L # C
$! #$!?
$+!%
V = IZ ( $
!# I IR + IL + IC )
12
!#y5

448. !($'!$!$ 100 9: $'! (!%! (!% 0.05
s $'!65

449. 0!0 10 9'

450. #) y#
#%5C v = 100sin1000t $
'

451. y !#5C

452. 1. 1.0 A 2. 2.0 A
3. 2.5 A 2. 3.0 A
($ 1.)
RLC ' Z = )e f gBrgb
72.

453. #$
#%4

454. :
5

455. f

456. )*

457. 5
0.25
2a

458. %*
$
2

459. 92

460. #;?3 10

461. ?:2
922
5g

462. )*#

463. )

464. :

465. #;5

466. f#$

467. ?
?:% #92 2

468. 1
?2
5g

469. A5
a

470. %*
#;2
92)* 1
1. 40 2. 80
3. 120 4. 160
)

471. /$
DE)*#

472. 4#
5 ($'!# ''$'# 5D #D # N/N0 = 0.5 4! 6 4' !9#
'#'/ T1/2 = 6 4' !9#
A = wp
x 9( n =
yY'
t = 1 !' ) 24 4' !9#

473. n = 9
z = 4
) A = 10 ' A0
s
= d
' f
tu r
tv
3 6 9 12
1.25
1
0.75
0.5
0
! (4' !9#)
N/N0
0

474. A = wp
x
10 = wp
Z
A0 = 160 '
12 4
Tips
G*

475. #!noC!
!?!
%
M! $
$2#??O !4 E !*
!
3
?$ O

476. A = ~p
 9( n =
€Y'

477. A = !
t O ?!
A0 = ! % (t = 0)
t =
E!
T1/2 =
E
- M! M$
M!

478. $!4 M$ ? #!$
! !
!$
{ , | , }
-
!
%*
2$!?3
M!
2$%*
12
9-126 D #4!$ 12.5 !' 2

479. D #9/ 10 '

480. $#4!D#

481. )
9-126 ( 2.5 '
1. 7 !' 2. 25 !' 3. 30 !' 4. 40 !'
($ 2.)
2
0
0$%,2
#2

482. #$ 2 :
DE
12 98 F 103 (?3 6 12 ) 12 *: 4.0 :

483. 24 :

484. :3 #$3fA2*
9

485. :3 92 *:) #
2
)0: 2
3
#$

486. / ) 5 925p1; 2
3
#$
2 5 925p;
: 1.414 × 2 = 2.828 92 )56 2.83
1.414 × 3 = 4.242 92 )56 4.24
9.8 × 5 = 49.0 92 )56 49.00

487. 98. 1f:#$*D3*
)*/$ #$1;2)

488. 2 )

489. /#2 )

490. #$
$
;3)
A2 700
)

491. ##;#*#$a*

492. )

493. /$

494. *:q

495. )*$ #$
4#
!5$9(:
mg
N = 700 N
a = 2 m/s2
m = ?
12) #!'$0('()
! #
W) 2 #!$'

496. y = ma
N  mg = ma
700  m(9.8) = m(2)
m = ;
FG
m = 59.32 kg Ans

497. Tips
7 2
!'$0! m !#(1)/
#'1P: 

498. %
) !(!# a

499.  = ma
 = ma
a
m
 = ma
!]%
2

500. #M[ $$+2!3!?
3
!
$+
!?#
M C%%
$#7!?%%
#M ##7!7!?
%
)0,)*
B
T
m
mg
5 1
T T
T
m1 m2
m m2g 1g
5 2
T
mg
mm
N
5 3
2 1 # 2 $*3!%
$!E %$!?#E

501. ! T
2 3 $*3!%
$$!? $#]! N E !3!?
99. 5

502. ) 30 )m)

503. #
#$1
5

504. ) 200 /)

505. 235*2$
)% 5* #2$
C0* 1.0 a*

506. *25* 920)*/$ #$1;-*
9$
5

507. ?:/ ?)A2#$0 #$)m)

508. (A2
C*1

509. 21
)

510. )

511. /$
*:%*
4#
!5$9(:
h = x = ?
!'$0) (#

512. M($
#()(0# 5#1'##!'$0 $%
# [ #
$%
#$ % 0 ‚2 = ‚1
½ kx2 = mgh
½ kx2 = mgx
½ (200)x2 = (1)(9.8)x
x = FG
x = 0.098 m = 9.80 cm. Ans
‚1 = mgh
m ‚2 = ½ kx2
m
m = 1 kg
u = 0 k = 200 N/m
v = 0

513. Tips
# 7*H%#
#
% Ek %
!3

514. !$
2 ( J )
p
m

515. 4
v +
!4 $!? 1/2 mv2
$
kg m2/s2 = kg m/s2 m= N m = J
$
!?q
v
#.% Ep
2$

516. 3#$! !
$
2 ( J ) #?$
!
1. #.%!
2. #.%)*
7*H%# p
%
3#$$O $
q
‚ - W1--2 = ‚
m
Ek =
mv2
h
$%
###
m
Ep = mgh
p
m
2$ 2!3#$
h
+!C$
?!?3#$
$!? mgh
+!C$
$
kg m/s2 m = N m = J
$
!?q
x
F
! 0
k Ep =
kx2
p
m 72!
2$!? 2!

517. !

518. 2!!
x !3#$
+!

519. $ $!? 1/2 kx2 +!

520. $
$
N/m m2 = N m = J $
!?q
‚ - W1--2 = ‚
Ep1 + Ek1 - W1--2 = Ep2 + Ek2
mgh + ½ mu2  F$h = 0 + ½ mv2
W1--2 5C##
#$ )
# (
u
F$
v
1
2
h
m
m

521. 100.

522. :

524. ?0i 2 a* )/$ * 0fX*
20
)m*)m# i?:

525. 2 150 ?*

526. : 92
#$?*
)

527. /$

528. 2
4#
!5$9(: 52'/# (!##55
n = 2 9
ST = 20H C
SQ = -150 J
SW = ?
Q = U + W
Q =
nRST + W
-150 = -
(2)(8.31)(20) + W
W = 348.60 J Ans
Tips
I 1 %!$%
!??? SQ $$!? 7
%
@%* SU !?3C??
SW
SQ
1'##!

529. +
1'##!

530. -
SU
1'##M(

531. 1 D/ +
1'##M(

532. # -
SW
# %9(

533. +
# '

534. -
SQ
SU
SW
SQ = SU + SW
SU =
NKBST =
nRST
=
PSV ( ƒ PV = NKBT)
SW = FSs
= PASs
= PSV
) #(1)
$

535. 101. $
09;3$
)=X%1
0
?3
1
0 10 )m)

536. 3
X%#$)1
)=
?C;3#$)m)

537. 392 #)1
;3) 4/3 *:#
)1
) 1
)

538. /$
*:
0

539. f
4#
!5$9(: 52 (!##55
sƒ = ?
) #!'$0$
! # 0 1

540. 2

541. 6 SD #

542. % tan sin '#'/

543. „
= …/3Y
…/3'
= /'
/Y
„
= /'
/Y
„
„ =
9
sƒ = 30.00 cm. Ans
s
2 1
2
1
8 n2 =1
/% n1 = 4/3
10 cm
M1
!'$0

544. Tips
J
JB7
sƒ
B A 8 n2
/% n1
C
)
4
# !

545. % !
4
*3 C72
2$
!+ 4
2$

546. *!
$**
!+E!
!
$*3 *!%
#
!+ $!!
$!!?*3
!%
@ ss
4 !
$ JB7 #
!%
s *3!
$ J
3#$@C$
#
!!
3#$@
4
102.
)*=

547. * me 5

548. :?0 -e 9

549. :)12$
*

550. :
C5

551. :?0ADDn1
4 a* *:C 60 )m)

552. *:
30 )m)

553. 5 )*=

554. 2
#%*
?*#$
)*=

555. a* (eV) ?
?:#$5*1 C5

556. :?0ADDn2% # (AC*1

557. a2
1
a*)
E
30 S$$
60 S$$
$
+ + + + + + + + + + + + + + + + + +
- - - - - - - - - - - - - - - - - - - - - -
s
2 1
2
1
D
!R
M1
!'$0
†„
† = ‡ˆ‰3Š^
‡ˆ‰3Š
†„
† = †‹‰3Š^
†‹‰3Š
= ‰
‰^
() #
! # 0 0 1 , 2
6 % tan sin
)

558. )

559. /$
ADDn
4#
125$9(: 52 (!##55
ay F = qE
#) #$

560. 5C
!9#91:519#( ) #)
y$

561. #y F = qE

562. %
! #8D/ 2

563. (!'6) 5
!

564. '!(!6!# % #) 'V2

565. 91:'#!
12
! #
y = may
F = may
(e)E = meay
ay = Œ
Ž
sy = uyt + ½ ayt2
0.15 = 0 + ½ Œ
Ž
t2
t = dFŽ
Œ
12
!

566. '
sx = vxt
0.6 = vx dFŽ
Œ
vx = 0.6 d ‚
jFAU
1'##:#$2

567. (#
sy = 15 S$$
m
V = 4 V
vy
vx = ux
ux #
30 S$$
sx = 60 S$$
+ + + + + + + + + + + + + + + + + +
- - - - - - - - - - - - - - - - - - - - - -
uy = 0

568. 2
Ek = ½ mevx
Ek = ½ me(0.6 d ‚
jFAU
)2
Ek = ½ (0.36) ‚
jFA
Ek = ½ (0.36) FzCDY Z
pFE
F (# $ E = V/d)
Ek = 8.0 x 1.6x10-19 J
Ek = 8.00 eV Ans
Tips
$??@,
ZZ` %!2C $ ZZ` E 3
(

569. ) ! O
@ ZZ` $ ZZ`$! 3ZZ` q
?
ZZ` E #
ZZ` F=qE !3$
* b

570. % + %
ZZ` #
+

571. % b %
ZZ` !]

572. !7!! (72E!?72E)
#$!2! (72E!?72o)...
Eo#$*!]..
103. 2
laD #$##$#$)%:)j

573. m (1015 Hz) *
a*:)

574. # m$
#Dp
) 2.5
)*=

575. a* ?
?:392 )*=

576. #$)? 5

577. g

578. f#;A5

579. :02 )*=

580. 9 : Aja

581. )?
#$ 9:%/;92) )2)5

582. ;
3 )2 392
1
%*
) 4 × 10-15
)*=

583. a*-#
)

584. /$
DE :
4#
E
F = qE -q +q F = qE
+
+
+
-
-
-

585. !5$9(: 52'/# (!##55
) %
#

586. N!9

587. !%$#9

588. 0
$†0'V:1'## 1'## 5(
# hf

589. '1'##: # 0#$ EKmax !'
1'## 4(D$!)‡#:4'# W
hf = EKmax + W
1'## %$

590. $s9 (

591. 1)/ n = 1

592. $05(

593. '
1'## n = 3
!5 ('('#

594. % 5$' 3
SE = | E1 E3|
9( E1 = -13.6 eV

595. E3 = Y
' =

596. Fz
' = -1.51 eV

597. SE = | -13.6  (-1.51)|
SE = 12.09 eV
) EKmax = SE = 12.09 eV

598. W = 2.5 eV
hf = EKmax + W

599. 4x10-15 f = 12.09 + 2.5
n = 3
f = 3.65x1015 Hz = 3.65 1$

600. s$S: Ans
e-hf
EKmax + W
W = 2.5 eV
EKmax = ?
f = ?
n = 2
n = 1
E3
E2
E1

601. Tips
B72%!?!C
e-hf
EKmax + W
#! #
hf = EKmax + W
!]!#
2!!?7
C #
3
!
!C !
!
*
$CZC
!
- !]!
!t $
!# hf (!
$
%

602. CZ
) $
$!? 2 %
!
EKmax
!?E!
!

603. Zn!E
W [ $$!E%
C
#$K!
En = Y
/'
n = n
n = 3
n = 2
n = 1
E3 = -1.51 eV
E2 = -3.40 eV
5$' 1 eV = 1.6x10-19 J
E1 = -13.6 eV

604. !
n = 1 [
2$

605. * ?!!!
2$?
2%* n ‘ 2

606. !
2$ !
!? 2$

607. *
$
!2 !

608. #$4!ZZ`

609. )l*12 ?

610. PAT2 DE 5w 2552 A2
?/ a?12 PAT2
DE a .?

611. B 0

612. :: #
9

613. 2m#) = B2S *:
/ $A5