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Physics

Physics
What type of lens is used in a magnifying glass

None of these
Plano-concave
Concave
Convex

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Physics
The Hydraulic Break works on the principle of ________ .

Coulomb's law
Bernouli's law
Boyle's law
Pascal's Law

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Physics
Ozone layer in the outer atmosphere helps us in

Absorbing UV radiations
Reflecting radio waves and makes radio communication possible
Regulating the temperature of atmosphere
Absorbing cosmic ray particles

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Physics
Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly

Produce heat and radiate it toward earth
Reflect back the heat given by earth
Prevent cold waves from the sky descending on earth
Absorb heat from the atmosphere send it towards earth

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Physics
A real gas can act as an ideal gas in

High pressure and high temperature
Low pressure and high temperature
High pressure and low temperature
Low pressure and low temperature

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Physics
Positive feedback is used in

Rectifiers
None of these
Amplifiers
Oscillators

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MORE MCQ ON Physics

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