Question # 1

For a fixed force, larger is the mass of a body the

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greater is its acceleration

smaller is its acceleration

smaller is its weight

zero is its acceleration

There is no net transfer of energy by particle of medium in

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Longitudinal wave

Transverse wave

Progressive wave

Stationary wave

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

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One joule

One erg

One electron volt

None of these

X-ray are also known as

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Roentgen rays

Maxwell rays

Plank range

Einstein rays

Earth is considered to be

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a non-inertial frame

an inertial frame

an accelerated frame

none of the above

Second's pendulum is the pendulum whose time period is:

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1 second

2 second

3 second

None of these

If an amount of heat enters the system it could

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decrease the internal energy

not change the internal energy

increase the internal energy

none of them

The strength of magnetic field around the current conductor is

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Smaller near the conductor

Greater near the conductor

Greater at the large distance from the conductor

Constant near and away from the conductor

In radio-active decay, the original element which disintegrate to another element is called

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element

daughter element

parent element

none of these

If both the inputs given to a gate ae 1 such that the output is 0, then it is:

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AND gate

NOR gate

OR gate

NOT gate

Both (A) and (C)

A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is

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0.15 x 10^-3Ns

0.98 x 10^-3Ns

1.5 x 10^-3Ns

2.5 x 10^-3Ns

On a diffraction grating which thing acts as a slit

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the lines which are ruled on it

the spacing between the lines

either of them

none of them

A closed organ pipe and an open organ pipe have their first overtone identical infrequency. Their lengths are in ratio

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3:4

1:2

2:3

3:5

The typical speed of light, radio-waves, X-rays microwaves is

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28,000,0000 ms^-1

29,000,0000 ms^-1

30,000,0000 ms^-1

None of these

Dimension of momentum is

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ML^-1T

M^-1LT

MLT

MLT^-1

Value of solar constant is

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1 kw/m²

1.4 kw/m²

1.4 w/m²

1 w/m²

In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width

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Becomes doubled

Becomes 4 times

Is halved

Remains the same

The expression F x t is called impulse if the time 't' is

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zero

very large

very small

infinite

In a laminar flow of non-viscous fluid along a horizontal pipe,the work done per second by the pressure at any section is equal to

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The pressure

Pressure x volume per second

Pressure x area of cross-section

Pressure x volume

When torque acting upon a system is zero which of the following will be constant?

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Force

Linear momentum

Linear impluse

None of these

When a horse pulls a cart the force that helps the horse to move forward is the force exerted by

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The cart on the horse

The ground on the horse

The ground on the cart

The horse on the ground

When body is connected to earth then electrons from the earth flow into the body. It means that the body is

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Uncharged

An insulator

Positively charged

Negatively charged

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