PHYSICS QUIZ

A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .

The centripetal force

Gravitational force between train and man

Illusion of the man

Pressure difference due to fast moving air in between

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Which microscope is often used to view metal surfaces?

Optical microscopes

None of these

Electron microscopes

Scanning tunneling microscopes

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A spring is an example of which of these

Hooke's law

Newton's 3rd law

Newton's 1st law

Conservation of mass law

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If the length of a simple pendulum is halved then its period of oscillation is

Increased by a factor 2

Halved

Doubled

Decreased by a factor 2

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The sharpness of a television image is termed as its

Clarity

Graphics

Resolution

Colour

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The Law of Kepler is related with which among the following ?

None

Planetary Motion

Law of Conservation of energy

Law of Gravitation

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Speed regulation of synchronous motor is

0.005

0.25

0.01

Zero

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Energy in reflected light :

Increases with the increase in angle

Does not depends on the angle of incidence

Becomes maximum for angle of incidence equal to 45°

Decreases with the increase in angle of incidence

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Which among the following is false about displacement?

It can be positive, negative or zero

It is always positive

Displacement is never greater than Distance

Its SI unit is meter

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The unit for measuring electric power is the

Volts

Watts

Steridian

Watts

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