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Physics

Physics
The unit of intensity of electric field is

N/c
N/m
J/c
Volt

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Physics
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is

Decreased by 2%
Increased by 2%
Increased by 4%
Decreased by 4%

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Physics
If ice floating on water in a vessel melts, the water level in the vessel ________ .

Increases
Decreases
First increases before decreasing
Does not change

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Physics
Mercury is commonly used as a thermometric fluid rather than water because

specific heat of mercury is less than water
specific heat of mercury is more than water
density of mercury is more than the water
mercury has greater visibility than water

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Physics
Solids which conduct electricity at higher temperature but not at lower temperature are called

Semi-conductor
Insulator
Metallic-conductor
Super-conductor

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Physics
It is difficult to cook rice

Same anywhere
Under a mine
At the sea level
At the top of a mountain

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