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Physics

Physics
Coolis tube is used to produce

Micro waves
X-rays
Gama rays
Radio waves

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Physics
The sudden fall of atmospheric pressure indicates

Cold weather
Rain
Storm
Fair weather

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Physics
Acceptable noise level for human ear

= 85 db
< 85 db
None of these
> 85 db

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Physics
When a ship enters the sea from a river

It rises or sinks depending on the material it is made of
It remains at the same level
It rises a little
It sinks a little

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Physics
Which colour has the highest frequency?

Indigo
Red
Violet
Green

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Physics
Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

will not rise
change its meniscus
depressed
will overflow

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