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Physics

Physics
The atmospheric layer reflecting radio waves is called

Mesosphere
Ozonosphere
Ionosphere
Stratosphere

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Physics
What type of heat transfer is boiling water?

None of these
Conduction
Radiation
Convection

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Physics
Longitudinal waves cannot travel through

Solid
Gas
Liquid
Vacuum

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Physics
Which type of radiation has the lowest penetrating ability?

Alpha
Beta
Gamma
All of these

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Physics
Stars are held together by

Magnetic forces
Electrical forces
Gravitational forces
Ionic forces

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Physics
Burns caused by steam are much severe than those caused by boiling water because

Steam has latent heat
Temperature of steam is higher
Steam pierces through the pores of body quickly
Steam is gas and engulfs the body quickly

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