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 man measures time period of a pendulum(T) in stationary lift. If the lift moves upwards
  2. If a magnetic substance is brought near the north or the south pole of a bar magnet
  3. A block of mass 5 kg is moving horizontally at a speed of 1.5 m/s. A perpendicular force
  4. A thin glass(refractive index 1.5) lens has optical power of -5D in air.
  5. When two identical capacitors are in series, they have 3 μF capacitance