Question # 1

The number of vibrating body at any instant from its equilibrium position is called

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displacement

frequency

amplitude

time period

The process of formation of spectrum is called:

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Interference

Spectroscopy

Dispersion

Reflection

Botha (A) and (D)

In an interference pattern of Young's double slit(YDS) experiment:

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Bright fringesare wider than dark fringes

Dark fringes are wider than bright fringes

Both dark and bright fringes are of equal width

Central fringes are wider than the outer fringes

The most suitable material for permanent magnet is

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cobalt

iron

steel

alaminium

Wave nature of particle was proposed by

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Einstein

Plank

De-Brogile

Max well

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

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A - Z

A + Z

Z

A

Static electricity is produced by the transfer of:

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Electrons

Protons

One fluid

Two fluids

None of these

When two protons are brought are brought closer potential energy of both of them:

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Increases

Decreases

Remains same

None of these

The most abundant isotope of neon is

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neon-20

neon-21

neon-22

neon-23

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

The magnitude of the displacement is a line from initial position to final position which is

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straight

curved

either be curved or straight

none of them

The speed of a falcon in a dive is

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23 ms^-1

37 ms^-1

40 ms^-1

43 ms^-1

The dimensions of intensity of energy are

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MLT⁺²⁷T¹

MLT²T²

ML³

MLT^-2T³

If P is the pressure of gas than K.E per unit volume of gas is

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P/2

P

3/2 P

2P

The process for which entropy remains constant is a process

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Reversible

Irreversible

Both

None of these

Angular momentum is

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A scalar

A vector

Neither A.nor B.

Either A.or B.

The three equation of motion are useful only for

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linear motion with increasing acceleration

linear motion with uniform acceleration

linear motion with zero acceleration

linear motion with varying acceleration

Which of the following spectrum have all the frequencies from high to low frequency range?

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Band spectrum

Continuous spectrum

Line spectrum

Discontinuous spectrum

1^st superconductor was discovered in year

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1890

1930

1895

1911

A unit set is the smallest basic structure which is:

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One dimensional

Two dimensional

Three dimensional

Four dimensional

None of these

Base quantities are

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Scalars

Vectors

Both

None of these

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

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