BITSAT SERIES Physics
Waves
12 previous year questions.
Volume: 12 Ques
Yield: Medium
High-Yield Trend
1
2023 2
2021 1
2020 1
2017 2
2016 2
2015 1
2014 1
2013 1
2012 Chapter Questions 12 MCQs
01
PYQ 2012
medium
physics ID: bitsat-2
The transverse displacement of a wave on a string is given by . This represents a:
1
wave moving in direction, speed
2
standing wave of frequency
3
standing wave of frequency
4
wave moving in direction, speed
02
PYQ 2013
medium
physics ID: bitsat-2
Two waves of wavelengths 99 cm and 100 cm both travelling with velocity 396 m/s are made to interfere. The number of beats produced by them is
1
2
2
4
3
1
4
0
03
PYQ 2014
medium
physics ID: bitsat-2
When a string is divided into three segments of length and , the fundamental frequencies of these three segments are and respectively. The original fundamental frequency of the string is:
1
2
3
4
04
PYQ 2015
medium
physics ID: bitsat-2
The frequency of a sonometer wire is . When the weights producing the tension are completely immersed in water, the frequency becomes . On immersing the weights in a certain liquid, the frequency becomes . The specific gravity of the liquid is:
1
2
3
4
05
PYQ 2015
hard
physics ID: bitsat-2
The frequency of a sonometer wire is . When the weights producing the tensions are completely immersed in water, the frequency becomes and on immersing the weights in a certain liquid, the frequency becomes . The specific gravity of the liquid is
1
1.42
2
1.77
3
1.82
4
1.21
06
PYQ 2016
medium
physics ID: bitsat-2
A string of length ℓ is fixed at both ends. It is vibrating in its 3rd overtone with maximum amplitude a. The amplitude at a distance ℓ/6 from one end is:
1
2
3
4
(a)/(2)
07
PYQ 2016
medium
physics ID: bitsat-2
A string of length is fixed at both ends. It is vibrating in its overtone with maximum amplitude ' '. The amplitude at a distance from one end is.
1
a
2
0
3
4
08
PYQ 2017
medium
physics ID: bitsat-2
A sonometer wire resonates with a given tuning fork forming standing waves with five antinodes between the two bridges when a mass of 9 kg is suspended from the wire. When this mass is replaced by a mass M, the wire resonates with the same tuning fork forming three antinodes for the same position of the bridges. The value of M is
1
25 kg
2
5 kg
3
12.5 kg
4
1.25 kg
09
PYQ 2020
medium
physics ID: bitsat-2
A string of length ℓ is fixed at both ends. It is vibrating in its 3ʳd overtone with maximum amplitude a. The amplitude at a distance ℓ/3 from one end is:
1
2
3
4
(a)/(2)
10
PYQ 2021
medium
physics ID: bitsat-2
A sonometer wire resonates with a given tuning fork forming standing waves with five antinodes between the two bridges when a mass of 9kg is suspended from the wire. When this mass is replaced by a mass M, the wire resonates with the same tuning fork forming three antinodes for the same positions of the bridges. The value of M is
1
25kg
2
5kg
3
12.5kg
4
1/25kg
11
PYQ 2021
medium
physics ID: bitsat-2
A tuning fork of frequency 392Hz resonates with 50cm length of a string under tension T. If the length of the string is decreased by 2%, keeping the tension constant, the number of beats heard when the string and the tuning fork are made to vibrate simultaneously is
1
4
2
6
3
8
4
12
12
PYQ 2023
medium
physics ID: bitsat-2
The ratio of intensities at two points and on the screen in a Young's double-slit experiment, where the phase difference between two waves of the same amplitude are and , respectively, is:
1
2
3
4