What is the Safe Limit of Sound Level of Db for Our Ears? - Physics

What is the safe limit of sound level of db for our ears?

One Line Answer

Sound of level below 120 dB is safe for our ears.

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Chapter 3: Sound - Exercise 2 [Page 149]

Chapter 3 Sound
Exercise 2 | Q 1 | Page 149

What type of waves are illustrated by the movement of a rope whose one end is fixed to a pole and the other end is moved up and down?

How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.

Select the correct option:

If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :

Draw a displacement-time graph for water wave.

The distance between one crest and one trough of a sea wave is 4.5 m. If the waves are produced at the rate of 240/min, calculate the wave velocity.

The amplitude of the sound wave decides its

Number of vibrations produced in one second is ______.

Sound can travel through solids, gases, liquids, and even vacuum.

Why does an empty vessel produce more sound than a filled one?