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Physics

Physics
A wheel-barrow is an example of

Pulley system
Class I lever
Class II lever
Class III lever

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Physics
Thermal expansion of materials arises from

Thermal vibrations
Weak bonds
Asymmetry of potential energy curve
Strong bonds

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Physics
An oil drop spreads over water because

Oil is lighter than water
Oil does not mix with water
water has a higher surface tension
Oil is more viscous

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Physics
Magnetic keepers are used to protect magnets from :

Effect of other magnets
Demagnetization due to heating
Self-demagnetization
Earth's magnetic field

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Physics
While ascending a hill, the driver of the vehicle keeps the gear ratio

Greater than 1
Equal to 1
Less than 1
Either equal to or greater than 1

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Physics
Bending of light rays in denser medium is termed as:

Refraction
Dispersion
Deflection
Reflection

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MORE MCQ ON Physics

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