SATHEE: Wave Mechanics Beats Question 24

Wave Mechanics Beats Question 24

Question: Two tuning forks, A and B, give 4 beats per second when sounded together. The frequency of A is 320 Hz. When some wax is added to B and it is sounded with A, 4 beats per second are again heard. The frequency of B is

[MP PMT 1997]

Options:

A) 312 Hz

B) 316 Hz

C) 324 Hz

D) 328 Hz

Show Answer

Answer:

Correct Answer: C

Solution:

nA ? nB¯ = x (same) …

(i) Wrong nB¯ ? nA = x (same) …

(ii) Correct

Therefore nB = nA + x = 320 + 4 = 324 Hz.

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Wave Mechanics Beats Question 24

Question: Two tuning forks, A and B, give 4 beats per second when sounded together. The frequency of A is 320 Hz. When some wax is added to B and it is sounded with A, 4 beats per second are again heard. The frequency of B is

Options:

Answer:

Solution:

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