Ace NEET 2025 with 70K+ NCERT-based MCQs, PYQs & solutions from expert faculty. Join 150,000+ aspirants on NEET.Guide. Get topic-wise, difficulty-rated practice for Class 11 & 12
A string fixed at both ends resonates at a fundamental frequency f. If a second identical string, also fixed at both ends, is joined to the first in series (end-to-end), what is the new fundamental frequency of the combined string?
f
f/2
2f
f/β2
The distance between two consecutive crests in a progressive wave is 0.5 m. If the frequency of the wave is 20 Hz, what is the speed of the wave?
10 m/s
20 m/s
5 m/s
40 m/s
A wave travels along a string. If the tension in the string is doubled while the linear mass density remains constant, what happens to the speed of the wave?
Increases by a factor of 2
Increases by a factor of β2
Remains the same
Decreases by a factor of 2
If the frequency of a wave is doubled, and the speed remains constant, what happens to the wavelength?
Doubled
Halved
Remains the same
Quadrupled
If the ratio of specific heats of a gas is 1.4, and the speed of sound in the gas at standard temperature and pressure is 330 m/s, what is the rms speed of the gas molecules?
460 m/s (approximately)
330 m/s
660 m/s
230 m/s
An open organ pipe has a fundamental frequency of 200 Hz. If the speed of sound in air is 340 m/s, what is the length of the pipe?
0.425 m
0.85 m
1.7 m
3.4 m
A transverse wave travels along a string with a speed of 10 m/s. If the tension in the string is doubled, what will be the new speed of the wave?
5 m/s
10 m/s
14.14 m/s
20 m/s
The speed of a transverse wave on a string is 20 m/s. If the linear mass density of the string is 0.01 kg/m, what is the tension in the string?
0.2 N
2 N
4 N
8 N
Which of the following factors does NOT affect the speed of a transverse wave on a string?
Tension
Linear mass density
Amplitude
Material of the string
