SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Decibel is

(a)

a sound apparatus

(b)

a sound tone

(c)

the unit of intensity of sound

(d)

the wavelength of noise


Question ID - 100006 :-

Decibel is

(a)

a sound apparatus

(b)

a sound tone

(c)

the unit of intensity of sound

(d)

the wavelength of noise

1 Answer
5876 Votes
3537

Answer Key : (c) -

the unit of intensity of sound



Next Question :

Two objects are at rest on a level frictionless surface. The objects are not connected. A force is applied to one of the objects, which then moves with acceleration  Mark the correct statement(s)

a)

The concept of centre of mass cannot be applied because the external force does not act on both the objects

b)

The centre of mass moves with acceleration that could be greater than

c)

The centre of mass moves with acceleration that must be equal to

d)

The centre of mass moves with acceleration that must be less than


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