Question # 1

Tick the correct statement:

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Both the potential and potential difference is scalars

Potential is a scalar but potential difference is a vector

Both are vectors

Potential is vector but potential difference is scalar

None of these

The wave form of SHM is

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Pulsed wave

Square wave

Triangular waved

Sine wave

The mass 'm' of a body moving at 0.8 c (whose rest mass is mo) becomes

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2 mo

1.67 mo

0.67 mo

2.67 mo

The L-C parallel circuit the capacitor draws a

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leading current

lagging current

main current

none of these

The phenomenon of generation of induced emf is called

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Electrostatic induction

Magnetic induction

Electromagnetic induction

Electric induction

Both (A) and (D)

Method "lamp and scale arrangement" used to measure the

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angle of deflection

restoring torque

magnetic field strength

current

When quarter of a circle is completed, phase of vibration is:

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90°

180°

45°

360°

A flowing liquid possess

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K.E

P.E

Pressure Energy

All

The nuclei of an element having the same charge number but different mass numbers are called:

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Isobars

Isotopes

Isomers

Isobaric

Isothermal

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

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Force

Energy

work

impulse

The unit of spring constant is:

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J-sec

Metre

Nm^-1

None of these

Reciprocal of bulk modulus is called

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Shear modulus

Compressibility

Young s modulus

None

When two charged conductors are brought into contact the electric charge on them is shared

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Equally

Proportion to their capacitance

Inversely as their capacitance

None of these

Newton's rings are formed as a result of

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diffraction of light

dispersion of light

interference of light

polarization of light

When a meteorite enters into earth atmosphere its energy converts into

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Kinetic energy

Heat energy

Mechanical energy

None of these

How many major components of fibre optic communication system are

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4

5

3

2

The smallest three dimensional basic structure in a crystalline solid is called

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lattice point

crystal lattice

cubic crystal

unit cell

If the error in the measurement radius of a sphere is 1% then the error in the measurement of volume will be

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8%

5%

3%

1%

The displacement coincides with the path of motion when a body moves along a

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Straight line

Curved path

Zig Zag path

None of these

Which type of the following force cannot do work, acting on a body

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Electric force

Gravitational force

Frictional force

Centripetal force

The expansion or compression must take place slowly in order to keep constant

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Volume

pressure

Temperature

None of these

In an astronomical telescope the eye piece has the focal length f_e if

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Short

Long

Extremely long

None of these

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