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
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Velocity of sound in air

I. Increases with temperature

II. Decreases with temperature

III. Increase with pressure

IV. Is independent of pressure

V. Is independent of temperature

Choose the correct answer. [Kerala (Engg.) 2001]

(1) Only I and II are true

(2) Only I and III are true

(3) Only II and III are true

(4) Only I and IV are true

Concept Questions :-

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

Difficulty Level:

If at same temperature and pressure, the densities for two diatomic gases are respectively d1 and d2, then the ratio of velocities of sound in these gases will be :

(1) $\sqrt{\frac{{d}_{2}}{{d}_{1}}}$

(2) $\sqrt{\frac{{d}_{1}}{{d}_{2}}}$

(3) d1d2

(4) $\sqrt{{d}_{1}{d}_{2}}$

Concept Questions :-

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

Difficulty Level:

The velocity of sound measured in hydrogen and oxygen gas at a given temperature will be in the ratio :

(1) 1 : 4

(2) 4 : 1

(3) 2 : 1

(4) 1 : 1

Concept Questions :-

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

Difficulty Level:

If vm is the velocity of sound in moist air, vd is the velocity of sound in dry air, under identical conditions of pressure and temperature

(1) vm > vd

(2) vm < vd

(3) vm = vd

(4) vmvd = 1

Concept Questions :-

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

Difficulty Level:

A source of the sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in the air is 300 m/s. The frequency of sound recorded by an observer who is standing in the air is :

(1) 200 Hz

(2) 3000 Hz

(3) 120 Hz

(4) 600 Hz

Concept Questions :-

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

Difficulty Level:

An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If the velocity of sound in air is 330 m/s, the wavelength and frequency of waves in air are:

(1) 5.5 mm, 60 kHz

(2) 330 m, 60 kHz

(3) 5.5 mm, 20 kHz

(4) 5.5 mm, 80 kHz

Concept Questions :-

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

Difficulty Level:

It is possible to distinguish between the transverse and longitudinal waves by studying the property of :

(1) Interference

(2) Diffraction

(3) Reflection

(4) Polarisation

Concept Questions :-

Types of waves