The speed of sound is maximum in MCQ with Answer and Explanation

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The speed of sound is maximum in

A. Air at 20°C

B. Air at 0°C

C. Iron

D. Water

Answer: Option C

Solution (By JKSSB Mock Tests)

Sound travels fastest in solids. Iron ~5000 m/s.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1

Escape velocity from a planet depends on

A. Density of atmosphere

B. Radius of planet only

C. Mass of escaping body

D. Mass and radius of planet

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Correct Answer: Option D

Explanation:
v_esc = √(2GM/R), depends on planet's mass and radius, not body's mass.

This question belongs to: Science Physics

Question #2

The instrument used to measure intensity of earthquakes is

A. Seismograph

B. Richter scale

C. Barometer

D. Hygrometer

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Correct Answer: Option A

Explanation:
Seismograph records seismic waves. Richter scale quantifies magnitude.

This question belongs to: Science Physics

Question #3

A wave of frequency 500 Hz has speed 350 m/s. Wavelength is

A. 70 m

B. 1.43 m

C. 175 m

D. 0.7 m

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Correct Answer: Option D

Explanation:
λ = v/f = 350/500 = 0.7 m.

This question belongs to: Science Physics

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