Question # 1

Two tuning forks of frequencies 240 Hz and 243 Hz are sounded together, the number of beats per second is.

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Zero

2

3

4

The distance between the consecutive nodes is

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No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

Sound travel faster in

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CO2

H2

O2

He

The path followed by a projectile in known as its

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Range

Trajectory

Cycle

Height

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

The angular acceleration a =

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If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.

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5

10

15

25

Huygen's proposed, light energy travels in space from source in

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1578

1678

1778

1868

The flow of a fluid is of

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One type

Two types

Three types

Four type

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

The time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

Critical angle is that incident angle in denser medium for which angle of refraction is.

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0 ^o

45 ^o

90 ^o

120 ^o

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

The orbital angular momentum is associated with the motion of a body along

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Straight path

Circular path

Curved path

Along any path

The dimension of viscosity are

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[M2L-2T2]

[M-1LT-1]

[M-1L-1T]

[ML-1T-1]

In simple harmonic motion the velocity of a particle is maximum at.

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Extreme position

Mean position

In between extreme and mean position

None of them

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11th Class Part 1 Physics Test Online MCQs With Answers

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