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. If an A.C. mains supply is given to be 220 V, what would be the average e.m.f.
  2. A circular disc of radius R and thickness R/6 has moment of inertia I about an axis
  3. Three particles A,B and C are thrown from the top of a tower with the same speed.
  4. The speed of an electron having a wavelength of 10⁻¹⁰ m is
  5. In Young’s double silt experiment if the distance between the two slits