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Physics

Physics
Pa(Pascal) is the unit for

Conductivity
Thrust
Frequency
Pressure

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Physics
A barometer is kept inside a bell jar. Air is slowly pumped out of the jar.

The bell jar breaks up
The mercury level does not change
The mercury level starts falling
The mercury level starts rising

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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.

0.042361111111111
0.043055555555556
0.044444444444444
Cannot be found from the given information.

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Physics
Which one of the following wavelengths of light is most effective in photosynthesis ?

Green
Orange
Blue
Yellow

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Physics
Refrigeration is a process which

Slows down the bacterial growth
Inactivates the bacteria
Kills bacteria
Plasmolyses the bacteria

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Physics
In a Laser (say neon laser) all the atoms emit the light waves of

Same amplitude
Same phase
All of these
Same frequency

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MORE MCQ ON Physics

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