Question # 1

The formula of centripetal acceleration is

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If r = 5 m and f = 4 N are along same direction, them torque is

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20 Nm

5 Nm

10 Nm

Zero

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

If an object lies at focus point F in front of a converd lens, its image is formed at.

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2F

F

3F

Infinity

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

Height of geo stationary orbit of the satellite above the earth is.

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300 km

250 km

400 km

None of these

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

The location of near point changes with

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Age

Size of the eye

Sharpness of the eye

None of these

Change of momentum is equal to

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Force

Tension

Impulse

Pressure

Let A = Area of cross section of pipe, v = speed of fluid, then 'Av' is called.

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Volume flow rate

Energy flow rate

Mass flow rate

Pressure flow rate

the distance covered during one vibration of an oscillating body in terms of amplitude 'A' is

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A/2

A

2A

4A

When sound waves enter in different medium, the quantity that remains unchanged is.

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Intensity

Speed

Frequency

Wave length

Which material has maximum viscosity

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Glycerin

Plasma

Methanol

Water

Oscillation of shock absorber of a car is practical example of.

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simple harmonic motion

Forced oscillation

Damped oscillation

Undamped oscillation

The density of blood is nearly equal to.

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Air

Milk

Honey

Water

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

Fringe spacing is inversely proportional to.

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Wave length

Slit separation

Distance between the slit and screen

Frequency of light

The optical fibre is covered for protection by

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Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

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11th Class Part 1 Physics Test Online MCQs With Answers

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