Question # 1

The light emitted from light emitting diode has wave length.

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1.1 micro meter

1.3 micro meter

1.5 micro meter

1.7 micro meter

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

Transformation of heat other forms of energy is discussed in

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Thermal physics

Thermodynamics

Atomic physics

Nuclear physics

The formula for the power is

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P= W/d

P=W/v

P=W/t

P=Wt

The final image seen through ey piece in telescope is.

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Real, enlarge and inverted

Vertual, enlarge and erect

Virtual, enlarge and inverted

In Real, enlarge and erect

The components of a vector which are perpendicular to each other are called

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Horizontal components

Vertical components

Rectangular components

All of these

Entropy remains constant.

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Isothermal process

Adiabatic process

Isochoric process

Isobaric process

The product of rotational inertial 'I' and angular velocity ' w' is equal to.

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Torque

Linear momentum

Angular momentum

Force

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

Unit of impulse is equivalent to that of.

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Force

Momentum

Acceleration

Velocity

Mercury is used as a thermometric substance because

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It is opaque

Does not stick to glass

Has low specific heat

All of these

In reversible process the entropy of system.

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Remain constant

Decrease

Increase

Becomes zero

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

The ideal gas law is.

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PV =NVk

P = NkT

PV =nRT

P=nRT

Which of the following is mechanical wave

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Heat

Light

Sound

None of these

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

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11th Class Part 1 Physics Test Online MCQs With Answers

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