Question # 1

A shunt resistance parallel to the galvanometer is used to convert it into

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avometer

millimeter

voltmeter

none of these

A body with frequency would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

In frequency modulation (FM), the carrier waves amplitude

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Remains constant

Increase

Decreases

None of these

The work done moving a body between two points in a conservation field is independent of the:

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Direction

Force applied

Path followed by the body `

Power

The emission of radiations take place in elements, having charge number greater than

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109

82

69

52

The current that flows through the coil of a motor causes:

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Its shaft to revolve

Its brushes to rotate

Motor to move

Its shafts to rotate

None of these

A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is:

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0.05 m

0.08 m

0.8 m

0.008 m

High speed meteors rushing through air reduces to ashes because of:

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Force of gravity

High resistance of air

Drag force

None of these

The value of current at resonance in series LCR circuit is affected by the value

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R only

C only

L only

R, C and L

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

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constant rate

volume rate

flow rate

steady rate

Essential characteristic of equilibrium is

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Momentum equal to zero

Acceleration equal to zero

Kinetic energy equal to zero

Velocity equal to zero

The repulsive force between the two electrons at a distance of 4 m is

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1.7 × 10^-15 N

2.4 × 10^-18 N

1.44 × 10^-29 N

1.9 × 10^-30 N

The dimensions of displacement is

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[L]

[L²]

[L³]

None of these

A particle is moving along a circular path of radius 5 m with uniform speed 5 m/sec what will be the magnitude of centripetal acceleration when the particle completes half revolution

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10π m/sec²

5 m/sec²

10/π m/sec²

Zero

The product of force and time of impact force is called

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Momentum

Impulsive force

Impulse

Rate of change of momentum

Mathematically, the instantaneous acceleration is represented by

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Steel is preferred for making springs over copper.Whey?

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Steel is cheaper

Young;s modulus of steel is more than that of copper

Young's modulus of copper is more than that of steel

Steel is less likely to be oxidized.

Polarization is a phenomenon in which

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Electric intensity decreases

Potential difference decreases

Charge 'Q' decreases

All of them

Hotness or coldness of an object is expressed in terms of a quantity called

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Heat

Temperature

Kelvin

None of these

Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called

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tiny regions

domains

vectors

none of them

In compound microscope the focal length of eye piece is

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Large

Small

Same as objective

None of these

On Celsius scale boiling point of water is taken as

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0°C

100°C

180°C

None of these

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