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Physics

Physics
The type of mirror used in automobiles to see the traffic on the rear side is

Convex
Concave
Plane
Plano-Convex

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Physics
Why does a cannon recoil after firing ?

Backward thrust of gases produced
Conservation of energy
Newton's third law of motion
Newton's first law of motion

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Physics
Radio telescopes are better than optical telescopes because

All of these
they can work during the day and night
they can detect faint galaxies which no optical telescope can
they can work even in cloudy conditions

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Physics
In a Laser (say neon laser) all the atoms emit the light waves of

Same phase
Same amplitude
All of these
Same frequency

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Physics
'Therm' is the unit of

Power
Heat
Distance
Light

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Physics
Momentum is measured as the product of :

Mass and acceleration
Mass and force
Mass and inertia
Mass and velocity

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MORE MCQ ON Physics

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