Question # 1

When the charged particle is projected at right angles to the field, then experienced by it will be:

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Maximum

Zero

qvB

Both (A) and (B)

Both (A) and (C)

Practically the quantity v/c is always:

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less than one

Equal to one

Greater then one

all of these

None of these

Which of the following is not an example of intertial frame

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a body placed on the surface of earth

a body placed in a car moving with uniform velocity

a body placed in a car moving with same acceleration

none of these

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

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50

100

150

200

250

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/s^s)

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9.8 m

14.7 m

4.9 m

19.6 m

If d is the displacement of the body in time t, then its average velocity will be

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V_av= d x t

V_{av = t/d}

V_{av = d/t}

Electromagnetic waves transport:

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Energy only

Momentum only

Both A and B are correct

None of is correct

A traveling wave has a shape of:

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Square wave

Sine wave

Parabola

hyperbola

The angular speed of a particle moving along a circular path is 5 Pie rad sec^-1, Its period of motion is:

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2.5 sec

0.06 sec

15.7 sec

0.4 sec

Branch of physics which deals with the study of stars and galaxies is called:

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Solid state physics

Astrophysics

Molecular physics

Chemical physics

What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10^-2Wb, and change in current is 0.01 A?

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2 H

3 H

1/2 H

Zero

The capacity of a condenser when a dielectric is placed in between its plates

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Increases

Decreases

Doest not change

Fluid friction of a spherical body depend on the

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Shape

Size

Orientation

All of these

All real heat engines are less efficient than carnot engine due to

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Work substances

Friction

0 K

All of these

Two boats rowing close to one another tend to collide.This is due to the

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Air velocity between the narrow gap increases

Pressure between the narrow gap decreases

Both A and B

None

An instrument called a sphygmomanometer measure

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Density of water

Blood pressure

Milk density

None of these

The earth satellite is a

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Navy object

Revolving object

Accelerating object

Free falling object

The value of universal gas constant R is:

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8.314 J/K mole K

8314 J/ mole K

8.314 J/ mole K

None of these

Average acceleration is the difference of two vectors divided by a scalarΔt. Therefore

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A spinning cricket ball suffers

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An extra height

An extra velocity

An extra curvature

None of these

A mode of propagation of light through optical fibre in which the light within the fibre is

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Reflected

Refracted

Continuously refracted

None of these

In semiconductors, the valence band at room temperature is

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Completely filled

Partially filled

Empty

None of these

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