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Physics

Physics
The atmospheric layer reflecting radio waves is called

Ionosphere
Mesosphere
Ozonosphere
Stratosphere

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Physics
Steam at 100°C causes more severe burns than water at 100°C because

Steam has latent heat of vaporisation
Water has no specific heat capacity
Steam has no specific heat capacity
Water has latent heat of fusion

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Physics
Why the needle of iron swims on water surface when it is kept gently ?

It will remain under the water, when it will displace more water than its weight
Due to its shape
Due to surface tension
The density of needle is less than that of water

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Physics
The energy associated with motion is called

Kinetic energy
Both A & B
Potential energy
None of these

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Physics
One thousand microns is equal to

10-6m
10-9m
10-12m
10-3m

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Physics
If a barometric reading is falling, this usually indicates what

No pressure
Decreasing pressure
Increasing pressure
None

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MORE MCQ ON Physics

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