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Physics

Physics
In the absence of ozone layer, which rays will enter into atmosphere?

Ultraviolet
X-rays
Infrared
Visible

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Physics
If the spinning speed of the earth is increased then the weight of body at the equator

Increases
Decreases
Double
Same

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Physics
Matter waves are

De Broglie waves
Electromagnetic waves
Longitudinal waves
Transverse waves

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Physics
Bubbles of air rise up through liquids due to

Viscosity and buoyancy
Surface tension and adherence
Up thrust and surface tension
Air current over the liquid and buoyancy

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Physics
Speed regulation of synchronous motor is

0.25
0.005
0.01
Zero

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Physics
When an electric bulb breaks, there is an explosive sound. That is due to

The air outside rushing in to fill the vacuum inside the bulb
None of these
The chemical reaction between the gases inside the bulb
The compressed gases inside rushing out suddenly

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