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Tu g as F i s i k a

             L ENS A

          D i s u s u n O le h :
   3. F i r m a n H a d i F a n a n i
         4. M . F a i z a l R e z a
        5. M . Z a k D h a r fa n
6. N a n d a L i n t a n g S y a fi t r i
      7. P u jja T r i P u s p i t a
    8. W i s n u G a n a A d i t y a
Lens a
L e n s a a d a la h b e n d a b e n i n g y a n g d i b a t a s i
o le h d u a p e r m u k a a n b e r d a s a r k a n b e n t u k
p e rm u k a a n n y a .
L e n s a d i b e d a k a n m e n ja d i e n a m m a c a m , y a i t u
         * le n s a c e m b u n g r a n g k a p (b i k o n v e k s ),
         * le n s a c e m b u n g d a t a r (p la n k o n v e k s ),
         * le n s a c e m b u n g -c e k u n g (k o n k a f-k o n v e k s ),
         * le n s a c e k u n g r a n g k a p (b i k o n k a f),
         * le n s a c e k u n g d a t a r (p la n k o n kJe n i sd le n s a
                                                           a f), a n
         * le n s a c e k u n g c e m b u n g (k o n v e k1s .-k eonns k acf).m b u n g
                                                               L       a e
                                                             (a ) b i k o n v e k s ,
                                                             (b ) p la n k o n v e k s ,
                                                             (c ) k o n k a f-k o n v e k s ,
                                                             2 . Le n s a ce k u n g
                                                             (d ) b i k o n k a f
                                                             (e ) p la n k o n k a f, d a n
                                                             (f) k o n v e k s -k o n k a f.
1. Lens a Cembung
e m b u n g m e m i li k i c i r i le b i h t e b a l d i t e n g a h t e n g a h n y a
 a p i n g g i rn y a

n a r -s i n a r s e ja ja r k a m u le w a t k a n p a d a le n s a
 n g , s i n a r -s i n a r b i a s n y a a k a n b e r k u m p u l p a d a s a t
 i fa t le n s a c e m b u n g a d a la h m e n g u m p u lk a n s i n a r
r g e n ). T i t i k p e r t e m u a n s i n a r -s i n a r b i a s d i s e b u t t i t
t i t i k a p i ).
ens a Cekung
a c e k u n g a d a la h le n s a y a n g b a g i a n t e n g a h n y a
e n t u k c e k u n g le b i h t i p i s d a r i b a g i a n t e p i n y a .
Bayan g an p ad a l e n s a
                        +




    M2          F2                F1    M1




                              -




      M1          F1               F2    M2

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Lensa baru

  • 1. Tu g as F i s i k a L ENS A D i s u s u n O le h : 3. F i r m a n H a d i F a n a n i 4. M . F a i z a l R e z a 5. M . Z a k D h a r fa n 6. N a n d a L i n t a n g S y a fi t r i 7. P u jja T r i P u s p i t a 8. W i s n u G a n a A d i t y a
  • 2. Lens a L e n s a a d a la h b e n d a b e n i n g y a n g d i b a t a s i o le h d u a p e r m u k a a n b e r d a s a r k a n b e n t u k p e rm u k a a n n y a . L e n s a d i b e d a k a n m e n ja d i e n a m m a c a m , y a i t u * le n s a c e m b u n g r a n g k a p (b i k o n v e k s ), * le n s a c e m b u n g d a t a r (p la n k o n v e k s ), * le n s a c e m b u n g -c e k u n g (k o n k a f-k o n v e k s ), * le n s a c e k u n g r a n g k a p (b i k o n k a f), * le n s a c e k u n g d a t a r (p la n k o n kJe n i sd le n s a a f), a n * le n s a c e k u n g c e m b u n g (k o n v e k1s .-k eonns k acf).m b u n g L a e (a ) b i k o n v e k s , (b ) p la n k o n v e k s , (c ) k o n k a f-k o n v e k s , 2 . Le n s a ce k u n g (d ) b i k o n k a f (e ) p la n k o n k a f, d a n (f) k o n v e k s -k o n k a f.
  • 3. 1. Lens a Cembung e m b u n g m e m i li k i c i r i le b i h t e b a l d i t e n g a h t e n g a h n y a a p i n g g i rn y a n a r -s i n a r s e ja ja r k a m u le w a t k a n p a d a le n s a n g , s i n a r -s i n a r b i a s n y a a k a n b e r k u m p u l p a d a s a t i fa t le n s a c e m b u n g a d a la h m e n g u m p u lk a n s i n a r r g e n ). T i t i k p e r t e m u a n s i n a r -s i n a r b i a s d i s e b u t t i t t i t i k a p i ).
  • 4. ens a Cekung a c e k u n g a d a la h le n s a y a n g b a g i a n t e n g a h n y a e n t u k c e k u n g le b i h t i p i s d a r i b a g i a n t e p i n y a .
  • 5. Bayan g an p ad a l e n s a + M2 F2 F1 M1 - M1 F1 F2 M2