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Physics

Physics
The energy of a photon varies directly with its

Frequency
Speed
None of these
Wave length

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Physics
As water is cooled from 4 deg C to 0 deg C, its density

Remains same
Increases
Decreases
None of these

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Physics
What are the particles emitted by radioactive element after 3 consecutive disintegration?

1 alpha 1 beta
2 alpha 1 beta
2 beta 1 alpha
2 beta 2 alpha

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Physics
When a running car stops suddenly, the passengers tends to lean forward because of:

Gravitational force
Inertia of rest
Centrifugal force
Inertia of motion

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Physics
Thermal expansion of materials arises from

Asymmetry of potential energy curve
Strong bonds
Thermal vibrations
Weak bonds

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Physics
The shape of our milky way galaxy is

Circular
None of these
Spiral
Elliptical

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