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Physics

Physics
When a barometer is rising air pressure is

Increasing
Decreasing
Constant
Zero

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Physics
Electricity is transmitted over long distances

There is less wastage of energy
It is cheaper
It is safer
It is fast

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Physics
Transformer is a device to convert

Mechanical energy into Electrical energy
C. to A.C.
Low voltage A.C. into high voltage A.C.
Low voltage D.C. into high voltage D.C.

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Physics
A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground.

0.044444444444444
Cannot be found from the given information.
0.042361111111111
0.043055555555556

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Physics
The increasing order of the refractive index of certain materials is (left to right) ________

Rocksalt, Benzene, Kerosene, Ice
Rock Salt, Ice, Benzene, Kerosene
Ice, Kerosene, Benzene, Rock Salt
Kerosene, Ice, Benzene, Rock Salt

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Physics
Carbon Arc lamps are commonly used in

Vehicles
Cinema projectors
Photography
Domestic lighting

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