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Physics

Physics
Which of the following is optical illusion?

Earthshine
Mirage
Rainbow
Halo

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Physics
Bolometer is used to measure

Velocity
Temperature
Wavelength
Frequency

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Physics
A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because

None of these
A parachute has a larger surface area and air resistance is more
Stone is heavier than parachute
Special mechanisms are present in parachute

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Physics
An aircraft can perform aerobatic manoeuvres in a vertical loop because of

Gravity
Centrifugal force
Centripetal force
Weight

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Physics
Vehicle tyres are inflated properly

To ensure smooth running.
To avoid skidding and to minimise friction
To allow the vehicle to take more load.
To go fast and save fuel.

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Physics
Which one of the following is the value of one nanometer?

10-4 cm
10-6 cm
10-7 cm
10-3 cm

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MORE MCQ ON Physics

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