Question # 1

Rutherford performed an experiment on nuclear reactions in:

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1718 A.D

1818 A.D

1918 A.D

2001 A.D.

1701 A.D.

Electric field lines emerge from the charge in:

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One dimension

Two dimensions

Three dimensions

Four dimensions

None of them

The photon of radio-waves has energy of about

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1 Me V

1 Ke v

10^-10e v

10¹⁰e v

In the formula B= µ̻ nl, the symbol n denotes:

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Total number of turns of solenoid

Number of turns per unit length

Number of turns per unit volume

Numbers of turns per unit area

Number of moles

The graphical representation of ohm's law is

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hyperbola

straight line

ellipse

parabola

When the bob of simple pendulum is at mean position, its K.E will be

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maximum

minimum

zero

all of them

Which branch of physics deals with the structure and properties of solids

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Atomic Physics

Plasma Physics

Molecular Physics

Solid state physics

In the doping process, the ratio of the doping atoms to the semi conductor atom is

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1 to 10

1 to 10³

1 to 10⁶

1 to 10⁹

When the surfaces are coated with a lubricant, then they

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Stick to each other

Slide upon each other

Roll upon each other

None of these

Boyle's law is applicable in

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Isochoric process

Isothermal process

Isobaric process

Isotonic process

The CRO deflects the beam of electrons, when they passes through uniform

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electric field

gravitational field

magnetic flax

magnetic field

The ratio of the size of the image to that of object is called:

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Focal length

Aperture

Linear magnification

Principal axis

Dimension of mass is written as:

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M

[M]

(M)

[m]

The direction of velocity is along the direction of

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distance

displacement

acceleration

all of them

A body can have constant velocity when it follows:

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A circular path

A rectilinear path

Trajectory of a projectile

None of these

Hotness and coldness of an object is represented in terms:

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Heat

Temperature

Chemical energy

None of these

According to the special theory of relativity

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mass and energy are same entities

mass and energy are same entities but interconverible

mass and energy are different entities but interconverible

mass and energy are different entities but non-interconveritble

The graph showing the variation of displacement with time is a:

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Sine curve

Straight line

Parabola

None of these

The magnitude of alternative voltage V:

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Always increase

Always decrease

Remains constant

Does not remain constant

None of these

Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:

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100 N

70 N

20 N

Zero

Which one of the least multiple:

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Pico

Femto

Nano

Atto

If R is gas constant for 1 gram mole, C_pand C_vare specific heat for a solid then

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C_p- C_v= R

C_p- C_{v < R}

C_p- C_{v = 0}

C_p- C_{v > R}

The value for systolic blood pressure for a normal healthy person is

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140 torr

80 torr

90 torr

120 torr

The capacity of a parallel plat capacitor depends on the

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Type to metal used

Thickness of plates

Potential applied across the plates

Separation between the plates

To hear a clear echo, the reflecting surface must be at a minimum distance of

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10 m

16.5 m

33 m

66 m

Experiments revealed that the ratio of the stress to the strain is a constant value for

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different material

all materials

a given material

all of them

When the atomic particle are moving with velocities approaching that of light:

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Newton's laws become valid

Relativistic effects become prominent

Botha(A) and (B) are valid

Neither (A)nor (B)

There mass becomes zero.

Most OP-AMP operates with

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+ 6 V supply

+ 10 V supply

+ 12 V supply

+ 24 V supply

The total charge of any nucleus is given as

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Ze²

Z²e

Z/e

Ze

Body which falls freely under gravity provides good example of motion under:

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Uniform acceleration

Non-uniform acceleration

Uniform velocity

None of these

The information from far side of the universe are gathered by

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Radio telescope

Microscope

Telescope

Spectro scpe

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