The instrument used to record seismic waves is MCQ with Answer and Explanation

Question Report Error

The instrument used to record seismic waves is

A. Anemometer

B. Hygrometer

C. Seismograph

D. Barometer

Answer: Option C

Solution (By JKExamLibrary)

Seismograph records earth tremors, detects earthquakes. Barometer atmospheric pressure. Hygrometer humidity. Anemometer wind speed. Seismograph uses inertia of a suspended mass.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

The time period of a simple pendulum on Earth is T. If taken to a planet where g is 4 times, new period is

A. T/2

B. T/4

C. 2T

D. T

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Correct Answer: Option A

Explanation:
T ∝ 1/√g, g'=4g => T' = T/√4 = T/2.

This question belongs to: Science Physics

Question #2 Report Error

A force of 12 N gives an object acceleration 4 m/s². Mass of object is

A. 48 kg

B. 8 kg

C. 3 kg

D. 0.33 kg

View Answer & Solution Discuss

Correct Answer: Option C

Explanation:
m = F/a = 12/4 = 3 kg.

This question belongs to: Science Physics

Question #3 Report Error

Which particle has no charge?

A. Neutron

B. Proton

C. Alpha particle

D. Electron

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
Neutron is neutral (charge 0). Proton +e, electron -e. Alpha particle +2e. Neutron mass slightly more than proton. Discovered by Chadwick.

This question belongs to: Science Physics

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