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 ballet dancer, dancing on smooth floor, is spinning about a vertical axis
  2. If force(F),length(L) and time(T) be considered fundamental units, then the units of mass
  3. SI unit of permittivity is
  4. A radioactive substance decays to 1/16th of its initial activity in 40 days.
  5. Penetrating power of X-rays does not depend on