What is frequency of the sound of vibrations of pendulum which we can't hear?

below 20 Hz

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

above 20 Hz

No worries! We‘ve got your back. Try BYJU‘S free classes today!

20 Hz

No worries! We‘ve got your back. Try BYJU‘S free classes today!

none of these.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A below 20 Hz
The frequency of a vibrating pendulum is quite small and less than 20 Hz which is not in the audible range. Hence, it is not heard.

Suggest Corrections

Similar questions

Q. Why we can hear the sound produced by bees but we cant hear the sound of vibrations of pendulum?

Q. A sound wave completes

20

vibrations in

2.5 s

. Its frequency will be equal to :

Q. A tuning fork has the frequency of vibration

200 H z

. If the velocity of sound in air is

330 m / s

, then how far the sound has traversed while turning fork completes

20

vibrations.

(a) What is meant by the 'time-period' of a vibrating object? State its unit.

(b) Define 'frequency' of a vibrating object. Name the unit in which frequency is measured.

(c) A pendulum oscillates 40 times in 4 seconds. Calculate its (i) time-period. and (ii) frequency. Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.

Q. A pendulum vibrates with a frequency of 1 Hz. The sound produced by it is:

Join BYJU'S Learning Program

What is frequency of the sound of vibrations of pendulum which we can't hear?

The correct option is A below 20 HzThe frequency of a vibrating pendulum is quite small and less than 20 Hz which is not in the audible range. Hence, it is not heard.

The correct option is A below 20 Hz
The frequency of a vibrating pendulum is quite small and less than 20 Hz which is not in the audible range. Hence, it is not heard.