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Physics

Physics
Which metal is the best conductor of heat?

Copper
Gold
All of these
Silver

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Physics
What type of lens is a magnifying glass?

Converging
Achromatic
Diverging
Spherical

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Physics
A single fixed pulley is used to draw water from a well because

Efficiency is 100%
Force is applied in a convenient direction
Velocity ratio is low
Mechanical advantage is high

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Physics
Velocity of sound in air does not change with the change of

Wind in the direction of propagation of sound
Pressure of air
Moisture content in air
Temperature of air

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Physics
The density of water is 1 g/cc. This is strictly valid at

100°C
4°C
0°C
25°C

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Physics
A liquid disturbed by stirring comes to rest due to

Density
Surface tension
Viscosity
Centripetal force

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MORE MCQ ON Physics

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