WBJEE SERIES Physics
Waves
10 previous year questions.
Volume: 10 Ques
Yield: Medium
High-Yield Trend
1
2025 1
2023 1
2017 1
2014 2
2013 4
2008 Chapter Questions 10 MCQs
01
PYQ 2008
hard
physics ID: wbjee-20
A hollow cylinder with both sides open generates a frequency in air. When the cylinder vertically immersed into water by half its length the frequency will be
1
f
2
2f
3
f/2
4
f/4
02
PYQ 2008
medium
physics ID: wbjee-20
The equation of a progressive wave can be given by The frequency of the wave is
1
330 Hz
2
342 Hz
3
365 Hz
4
660 Hz
03
PYQ 2008
medium
physics ID: wbjee-20
When sound is produced in an aeroplane moving with a velocity of horizontal its echo is heard after If velocity of sound in air is the elevation of aircraft is
1
2
3
4
04
PYQ 2008
medium
physics ID: wbjee-20
Two stretched strings have lengths and while tension are and respectively. If they are made of same material the ratio of their frequency is
1
2:01
2
1:02
3
1:01
4
1:04
05
PYQ 2013
medium
physics ID: wbjee-20
A car moving at a velocity of 17 towards an approaching bus that blows a horn at a frequency of on a straight track. The frequency of this horn appears to be to the car driver. If the velocity of sound in air is , then velocity of the approaching bus is
1
2
2
4
3
8
4
10
06
PYQ 2013
medium
physics ID: wbjee-20
A travelling acoustic wave of frequency is moving along the positive -direction with a velocity of . The phase difference between two points and is 60 . Then the minimum separation between the two pints is
1
1 mm
2
1 cm
3
10 cm
4
1 m
07
PYQ 2014
medium
physics ID: wbjee-20
A whistle whose air column is open at both ends has a fundamental frequency of . If the speed of sound in air is , the length of the whistle, in cm, is
1
44684
2
44837
3
4
20-Mar
08
PYQ 2017
medium
physics ID: wbjee-20
A uniform string of length and mass is fixed at both ends while it is subject to a tension . It can vibrate at frequencies given by the formula (where )
1
2
3
4
09
PYQ 2023
medium
physics ID: wbjee-20
The displacement of a plane progressive wave in a medium, traveling towards the positive x-axis with velocity 4m/s at t=0 is given by . Then the expression for the displacement at a later time t=4 sec will be
1
2
3
4
10
PYQ 2025
medium
physics ID: wbjee-20
The equation of a stationary wave along a stretched string is given by Additional Information Here, and are in cm and in seconds. The separation between two adjacent nodes is:
1
1.5 cm
2
3 cm
3
6 cm
4
14 cm
About Waves - WBJEE
Waves is a vital chapter for WBJEE aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Waves PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Waves carry the most weight. Then, tackle the questions iteratively to solidify your understanding.