Question # 1

1 torr in Nm-2 is expressed as.

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130.5 Nm-2

133.3 N m-2

140.2 Nm-2

135.2 Nm-2

A force of 100 N makes on angle of 60^owith y axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

Radar system is an application of.

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Chemical effect

Electric effect

Magnetic effect

Doppler's effect

Heat is form of.

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Power

Momentum

Energy

Torque

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

One radian is equal to.

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75.3^o

57.3^o

35.7^o

73.3^o

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is.

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15 Hz

30 HZ

60 Hz

480 Hz

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

Hot igneous rocks, usually in molten or partly molten state are found in the depth of

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5 km

10 km

15 km

20 km

For working of heat engine, there must be.

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A source

A sink

either of these

Both of these

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

A phenomenon by which energy is dissipated from the oscillating system is called.

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Forced oscillation

Free oscillation

Damping

Simple harmonic motion

Average acceleration is a

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Scalar quantity

Vector quantity

(-) ve quantity

None of these

Satellites are the objects that orbit around the

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Moon

Sun

Earth

Star

A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes.

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Halve

Doubled

Four time

Constant

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11th Class Part 1 Physics Test Online MCQs With Answers

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