Navigate

A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is

A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is

Options

(a) 50 Hz
(b) 100 Hz
(c) 80 Hz
(d) None of these

Correct Answer:

50 Hz

Explanation:

Beats / sec = difference of frequencies
2 / 0.04 = frequency difference
Frequency difference = 2 × 100 / 4 = 50 Hz

AFMC2002
admin:

Related Questions

  1. A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds.
  2. The unit of surface tension is
  3. The additional energy that should be given to an electron to reduce its de-Broglie
  4. A bicyclist comes to a skidding stop in 10 m.During this process, the force
  5. MA⁻¹T⁻² is the dimensional formula of