Question # 1

The unit of viscosity is SI system is:

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Kg^-1m sec^-1

Kgm^-1 sec^-1

Kg^-1m^-1 sec

None of these

When the charged particle is projected at right angles to the field, then experienced by it will be:

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Maximum

Zero

qvB

Both (A) and (B)

Both (A) and (C)

A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

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1 m

5 m

10 m

15 m

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

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greater than the frequency of applied force

equal to the frequency of applied force

less than the frequency of applied force

all of them

When each particle of the fluid moves along a smoth path, this path is known as

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straight path

smooth path

haphazard path

steamline

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

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2500 MHz

0.25 MHz

2500 KHz

None of these

The current through a metallic conductor is due to the motion of

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protons

neutrons

electrons

free electrons

1 gm-cm^-3is equal to:

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10³kg-m^-3

10^-3kg-m^-3

1 kg-m^-3

10⁶kg-m^-1

Diameter of the nucleus s of the order of

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10^-10m

10^-12m

10^-15m

10^-18m

The curie temperature of iron is about

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250°C

500°C

750°C

1000°C

In magnet-coil experiment, emf can be produced by:

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Keeping the coil stationary and moving the magnet

Keeping the magnet stationary and moving the coil

Relative motion of the loop and magnet

Any one of above

All above

The quality of the moving body is called

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Motion

Momentum

Force

None of these

In coordinate axes the right ward forces are taken as

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Positive

Negative

Just units only

None of these

The ratio of volumetric stress to volumetric strain is called

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Young's modules

Bulk modulus

Shear modulus

Hooke's law

If f = 5 cm and d = 25 cm then the magnification will be

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2

4

5

6

A line whose tangent at each point is in the direction of an electric intensity at that point is called

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Charge

Voltage

Electric force

None of these

Which of the following properties show light is transverse wave in nature?

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Interference

Reflection

Diffraction

Polarization

A man is an elevator descending with acceleration will conclude his weight has

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Increase

Decrease

Remain constant

Become zero

Viscosity of methanol at 30^oC in NSm^-2

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0.341 × 10^-3

0.357 × 10^-3

0.369 × 10^-3

0.510 × 10^-3

The unit of thermodynamic temperature scale is.

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Kelvin

Celsius

Fahrenheit

None of these

Breaking load for units area of cross-section of a wire is called:

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Tensile strength

Ductibility

Yield point

Breaking stress

A body weights 100 N on the surface of the earth. Its weight at a depth equal to half the radius of the earth is

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44.44 N

50 N

25 N

75 N

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