The instrument used to measure intensity of earthquakes is MCQ with Answer and Explanation

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The instrument used to measure intensity of earthquakes is

A. Richter scale

B. Seismograph

C. Barometer

D. Hygrometer

Answer: Option B

Solution (By JKSSB Mock Tests)

Seismograph records seismic waves. Richter scale quantifies magnitude.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1

A fuse wire is connected in which wire of the circuit?

A. Earth

B. Neutral

C. Phase (live)

D. Any wire

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Correct Answer: Option C

Explanation:
Fuse must be in live wire so that appliance is isolated when fuse blows.

This question belongs to: Science Physics

Question #2

The least count of a standard vernier calliper is generally

A. 0.001 cm

B. 0.01 cm

C. 1 cm

D. 0.1 cm

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Correct Answer: Option B

Explanation:
Least count = 1 MSD - 1 VSD = 0.1 - 0.09 = 0.01 cm (common).

This question belongs to: Science Physics

Question #3

Water's high specific heat useful for:

A. Neither

B. Both

C. Biological temperature regulation

D. Engine cooling

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Correct Answer: Option B

Explanation:
High c = absorbs/releases large heat with small ΔT. Stabilizes engine temperatures and organism body temperatures. Memory tip: 'High specific heat = thermal buffer; water moderates climate and physiology'. Property application frequently tested in competitive exams.

This question belongs to: Science Physics

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