Question # 1

The change of magnetic flux through a circuit will produce

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Magnetic Field

Electric Field

emf

a.c

Graph of Black body radiation is example of

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Band spectra

Continuo's spectra

Line spectra

All

The smooth or steady stream-line flow is know as

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Laminar flow

Turbulent flow

Both a and b

None of the above

Direction of motion ______ in circular motion:

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Changes off and on

Changes continuously

Does not change

None of them

If a vector lies in second quadrant, than B_xand B_yare:

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-,+

+,-

+,+

-,-

The basic circuit elements of A.C circuit are

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Resistor

Inductor

Capacitor

All the three

According to the special theory of relativity, a moving clock

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runs faster

runs slower

neither runs faster nor slower

all of these

In the expression of force experienced by electron, the direction of both v and B are

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parallel

zero

perpendicular

none of them

In flesh, light element like carbon, hydrogen and oxygen predominate. Three elements allows ______ amount of incident X-ray to pass through them

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Small

Greater

Equal

Sometimes

A spring of constant k = 0.4 N m^-1is to be extended through 10 cm at a place where g = 10 m sec^-2. The mass to be suspended should be:

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4 gms

0.4 gm

40 gms

None of these

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

Resolving power of a telescope depends on:

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The magnification of eyepiece

The focal length of objective lens

Diameter of objective lens

Refractive index of objective lens

We can observe only when the grating spacing is

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of the order of the wavelength used

greater than the wavelength used

less than the wavelength used

any one of them

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Bernoulli's equation

Torricelli's theorem

Venturi relation

None of these

Colour of thin film will not show result from

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Scattering of light

Dispersion of light

Interference of light

Both a and b

In single slit diffraction the condition for second minimum is

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Sinθ = λ

d Sinθ =2λ

d Sinθ =3λ

d Cosθ =0

How many wave lengths of Kr⁸⁶ are contained in one meter

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1553164.13

652189.63

2347127.23

1650763.73

A double convex lens acts as a diverging lens when the object is

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Between f and 2f

At the foucs

Inside the focus

All of these

Gain of operational amplifier is independent of;

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Internal structure

External Structure

Batteries

Potential changes

Newton's first law of motion is also known as

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Law of motion

Law of mechanics

law of inertia

None of these

You are traveling in a car during a thunder storm. In order to protect yourself from lightning you would prefer to

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Remain in car

Take shelter under tree

Get on and lie flat on the ground

Touch the nearest electric pole

The dimensions of coefficient of viscosity are

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ML^-1T²

ML²T¹

ML^-1T¹

Nono of these

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