The phase difference between two points separated by 1m in a wave of frequency 120 Hz is 90°. The wave velocity is :

(1) 180 m/s

(2) 240 m/s

(3) 480 m/s

(4) 720 m/s

Concept Questions :-

Wave motion
High Yielding Test Series + Question Bank - NEET 2020

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The echo of a gunshot is heard 8 sec. after the gun is fired. How far from him is the surface that reflects the sound? (velocity of sound in air = 350 m/s) :

(1) 1400 m

(2) 2800 m

(3) 700 m

(4) 350 m

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A man sets his watch by the sound of a siren placed at a distance 1 km away. If the velocity of sound is 330 m/s

(1) His watch is set 3 sec. faster

(2) His watch is set 3 sec. slower

(3) His watch is set correctly

(4) None of the above

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Velocity of sound in air is

(1) Faster in dry air than in moist air

(2) Directly proportional to pressure

(3) Directly proportional to temperature

(4) Independent of pressure of air

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The frequency of a sound wave is n and its velocity is v. If the frequency is increased to 4n, the velocity of the wave will be

(1) v

(2) 2v

(3) 4v

(4) v/4

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The speed of a wave in a certain medium is 960 m/s. If 3600 waves pass over a certain point of the medium in 1 minute, the wavelength is :

(1) 2 metres

(2) 4 metres

(3) 8 metres

(4) 16 metres

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Speed of sound at constant temperature depends on :

(1) Pressure

(2) Density of gas

(3) Above both

(4) None of the above

Concept Questions :-

Speed of sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Sound velocity is maximum in :

(1) H2

(2) N2

(3) He

(4) O2

Concept Questions :-

Wave motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The minimum distance of reflector surface from the source for listening the echo of sound is :

(1) 28 m

(2) 18 m

(3) 19 m

(4) 16.5 m

Concept Questions :-

pressure wave in sound
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The type of waves that can be propagated through solid is :

(1) Transverse

(2) Longitudinal

(3) Both (1) and (2)

(4) None of these

Concept Questions :-

Types of waves