This document provides information about an online JEE preparation course. It includes: - Details about the course schedule starting on May 4th with an evening batch, with a regular price of Rs. 10,000 and a lightning deal price of Rs. 6,000 using coupon code VDJEE21. - Overviews of course features like 7 full syllabus tests, doubt solving support, lessons from top teachers, and recorded class access. - Sample questions and answers on physics topics like waves, sound, and Doppler effect. - Instructions for enrolling in the course and what to expect after enrollment.

5. Relatable ?
Am I too late
for April JEE
Attempt ??
Will I be able to
make my parents
proud???

7. 7
TESTS
15 full and 5 Part
syllabus test
to make you
exam ready
DOUBTS
Solve unlimited
doubts with Doubt
experts on our
Doubt App from
8 AM to 11 PM
BEST TEACHERS
Cover entire
Syllabus with
India’s Best
Teachers in 45
Sessions
REPLAY
Get all the live
classes as recording
for you to re-look at
it as many time as
you want
GET, SET, GO...

8. STARTS ON SCHEDULE PRICE
4th May Evenings 10,000
Lightening Deal
Coupon Code
Rs. 6,000
VDJEE21
GREAT DEAL!!!
SHCC

9. Wave Motion

10. Sound Waves

11. Change in temperature of the medium changes
Let’s Solve
A
B
D
C
A
B
D
C
D
Frequency of sound waves
Amplitude of sound waves
Wavelength of sound waves
Loudness of sound waves

12. Change in temperature of the medium changes
Let’s Solve
A
B
D
C
A
B
D
C
D
Frequency of sound waves
Amplitude of sound waves
Wavelength of sound waves
Loudness of sound waves

13. Water waves produced by a motor boat sailing in water are
Let’s Solve
A
B
D
C
A
B
D
C
D
Neither longitudinal nor transverse
Both longitudinal and transverse
Only longitudinal
Only transverse

14. Water waves produced by a motor boat sailing in water are
Let’s Solve
A
B
D
C
A
B
D
C
D
Neither longitudinal nor transverse
Both longitudinal and transverse
Only longitudinal
Only transverse

15. The equation of a wave on a string of linear mass density 0.04 kg m-1
is given by
The tension in the string is
A
B
D
C
A
B
D
C
D
4.0 N
Let’s Solve
12.5 N
0.5 N
6.25 N

16. The equation of a wave on a string of linear mass density 0.04 kg m-1
is given by
The tension in the string is
A
B
D
C
A
B
D
C
D
4.0 N
Let’s Solve
12.5 N
0.5 N
6.25 N

17. A string of mass 2.5 kg is under a tension of 200 N. the length of the
stretched string is 20.0m. If the transverse jerk is struck at one end of
the string, the disturbance will reach the other end in
Let’s Solve
A
B
D
C
A
B
D
C
D
One second
0.5 second
2 seconds
Data given is insufficient

18. A string of mass 2.5 kg is under a tension of 200 N. the length of the
stretched string is 20.0m. If the transverse jerk is struck at one end of
the string, the disturbance will reach the other end in
Let’s Solve
A
B
D
C
A
B
D
C
D
One second
0.5 second
2 seconds
Data given is insufficient

19. A sound wave is passing through air column in the form of
compression and rarefaction. In consecutive compressions and
rarefactions,
Let’s Solve
A
B
D
C
A
B
D
C
D
Density remains constant
Boyle’s law is obeyed
Bulk modulus of air oscillates
There is no transfer of heat

20. A sound wave is passing through air column in the form of
compression and rarefaction. In consecutive compressions and
rarefactions,
Let’s Solve
A
B
D
C
A
B
D
C
D
Density remains constant
Boyle’s law is obeyed
Bulk modulus of air oscillates
There is no transfer of heat

21. Interference

22. Beats
Two waves of almost equal frequencies ω1
≈ ω2
ω = (ω1
+ ω2
)/2, Δω = ω1
- ω2
(beats freq.)

23. Two sound waves with wavelengths 5.0 m and 5.5 m respectively,
each propagates in a gas with velocity 330 m/s. We expect the
following number of beats per second.
Let’s Solve
A
B
D
C
A
B
D
C
D
6
12
0
1

24. Two sound waves with wavelengths 5.0 m and 5.5 m respectively,
each propagates in a gas with velocity 330 m/s. We expect the
following number of beats per second.
Let’s Solve
A
B
D
C
A
B
D
C
D
6
12
0
1

25. Equation of a plane progressive given by y = 0.6 sin .
on reflection from a denser medium its amplitude becomes
Of the amplitude of the incident wave. The equation of the
reflected wave is
Let’s Solve
A
B
D
C
A
B
D
C
D
y = 0.6 sin
y = -0.4 sin
y = 0.4 sin
y = -0.4 sin -

26. Equation of a plane progressive given by y = 0.6 sin .
on reflection from a denser medium its amplitude becomes
Of the amplitude of the incident wave. The equation of the
reflected wave is
Let’s Solve
A
B
D
C
A
B
D
C
D
y = 0.6 sin
y = -0.4 sin
y = 0.4 sin
y = -0.4 sin -

27. WAVE Platform

28. Doubts
More than 2 Million doubts solved

29. Standing Waves

30. String Fixed at both Ends

31. String Fixed at One End

32. Closed Organ Pipe

33. Open Organ Pipe

34. Resonance Colomn

35. A standing wave having 3 nodes and 2 antinodes is formed between
two atoms having a distance of 1.21 Ao
between them. The
wavelength of the standing wave is
Let’s Solve
A
B
D
C
A
B
D
C
D
1.21 A
2.42 A
6.05 A
3.63 A

36. A standing wave having 3 nodes and 2 antinodes is formed between
two atoms having a distance of 1.12 A between them. The wavelength
of the standing wave is
Let’s Solve
A
B
D
C
A
B
D
C
D
1.21 A
2.42 A
6.05 A
3.63 A

37. With an open end organ pipe of length L, the fundamental tone has a
frequency
Let’s Solve
A
B
D
C
A
B
D
C
D
And only even harmonics are present
And only odd harmonics are present
And even as well as odd harmonics are present
And only odd harmonics are present

38. With an open end organ pipe of length L, the fundamental tone has a
frequency
Let’s Solve
A
B
D
C
A
B
D
C
D
And only even harmonics are present
And only odd harmonics are present
And even as well as odd harmonics are present
And only odd harmonics are present

39. A resonance air column of length 20 cm resonates with a tuning fork
of frequency 450 Hz. Ignoring the correction, the velocity of sound in
air will be
Let’s Solve
A
B
D
C
A
B
D
C
D
920 m/s
720 m/s
820 m/s
360 m/s

40. A resonance air column of length 20 cm resonates with a tuning fork
of frequency 450 Hz. Ignoring the correction, the velocity of sound in
air will be
Let’s Solve
A
B
D
C
A
B
D
C
D
920 m/s
720 m/s
820 m/s
360 m/s

41. The amplitude of a wave is given by resonance will
occur when
Let’s Solve
A
B
D
C
A
B
D
C
D
b = -c/2
b = -a/2
b = 0, a = c
None of these

42. The amplitude of a wave is given by resonance will
occur when
Let’s Solve
A
B
D
C
A
B
D
C
D
b = -c/2
b = -a/2
b = 0, a = c
None of these

43. Doppler Effect:
where, v is the speed of sound in the
medium, u0
is the speed of the observer
w.r.t. The medium, considered positive
when it moves towards the source, and us
is the speed of the source w.r.t. The
medium, considered positive when it
moves towards the observer and negative
when it moves away from the observer.

44. A train whistling at constant frequency is moving towards a station
at a constant speed V. the train goes past a stationary observer on
the station. The frequency n’ of the sound as heard by the observer
is plotted as a function of time t as shown in fig. Identify the
expected curve
Let’s Solve
A
B
D
C
A
B
D
C
D

45. A train whistling at constant frequency is moving towards a station
at a constant speed V. the train goes past a stationary observer on
the station. The frequency n’ of the sound as heard by the observer
is plotted as a function of time t as shown in fig. Identify the
expected curve
Let’s Solve
C
C

46. A driver in a car, approaching a vertical wall notices that the
frequency of his car horn, has changed from 440 Hz to 480 Hz, when
it gets reflected from the wall. If the speed of sound in air is 330 m/s,
then the speed of the car is :
A
B
D
C
A
B
D
C
D
16.3 m/s
20.3 m/s
14.3 m/s
15.3 m/s
Let’s Solve

47. A driver in a car, approaching a vertical wall notices that the
frequency of his car horn, has changed from 440 Hz to 480 Hz, when
it gets reflected from the wall. If the speed of sound in air is 330 m/s,
then the speed of the car is :
A
A 14.3 m/s
Let’s Solve

49. How to enroll ?

50. After Enrolling...

52. STARTS ON SCHEDULE PRICE
4th May Evenings 10,000
Lightening Deal
Coupon Code
Rs. 6,000
VDJEE21
GREAT DEAL!!!
SHCC