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Physics

Physics
Increased wind speed is accompanied by a reduced air ________

Humidity
Pressure
Aridity
Density

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Physics
Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is

Homogeneous and transparent
Of variable refractive index
Inhomogeneous and transparent
Made up of slabs of different refractive indices

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Physics
Sources of geothermal power are

Water
Earth's heat
None of these
Both A & B

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Physics
If a copper wire is increased to double its length, its resistance will become

Half
Four times
One–fourth
Double

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Physics
Sound is heard over longer distances on rainy days because

Sound travels faster in moist air
Moist air absorbs sound
Moist air does not absorb sound
Sound travels slowly in moist air

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Physics
A rear-view mirror for driving is

Convex
Inverted
Plain
Concave

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MORE MCQ ON Physics

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