Physics - General Knowledge Questions and Answers

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Which of the following is not an intrusive igneous body?

Stock

Dike

Stope

Batholith

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The instrument for measuring intensity of earthquakes is called

Ediograph

Pantagraph

Ergograph

Seismograph

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An instrument that records earthquakes is

Ergograph

Ediograph

Thermograph

Seismograph

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To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

Should be made of a good conductor but can be of any shape

Should be in the form of a vertical rod

Can be of any shape

Should be made of a good conductor like copper with sharp-pointed edges

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The number of waves per second in a sound is called ________ of that sound.

Velocity

Frequency

Displacement

Acceleration

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Sound waves do not show the phenomenon of

Refraction

Interference

Diffraction

Polarisation

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Speed of sound is maximum in which among the following?

Gases

Vaccum

Liquids

Solids

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The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because

The ringing is not loud enough

The glass of the bell jar absorbs the sound waves

The bell jar is too small

There is no air or any other gas in the bell jar

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What is the full form of "RADAR" ?

Radio Detecting and Ranging

Region Device and Ranging

Radio Detect and Rangs

Radio Device and Ranging