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Physics

Physics
The primary agent of contact metamorphism is

Temperature
Flowing water
Pressure
Weathering

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Physics
For photoelectric effect to take place, the metal used as the cathode should have ________

Low work function
High melting point
Low melting point
Low resistance

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Physics
The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall

Increases with depth of the wall
Depends on the area of the wall
Depends on the thickness of the wall
Increases with height of the wall

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Physics
Sound is heard over longer distances on rainy days because

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

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Physics
Addition of suitable impurities into semiconductor, is called

Forming
Diluting
Mixing
Doping

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Physics
In general, which is the cause of a sea breeze?

Pressure
Specific heat
All listed here
Heat

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