Question # 1

Arsenic, antimony and phosphorus are the elements from

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third group

fourth group

fifth group

none of them

Max Planck received the Nobel Prize for his discovery of energy quants in:

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1718 AD

1918 AH

1818 AD

1918 AD

None of these

SHM is type of ______ motion

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Vibratory

Linear

Circular

None

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

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very small energy

very large energy

frictional forces

acceleration due to gravity

The ratio of energy E to the corresponding frequency (f) of the radiation (emitted or absorbed) is called:

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Wien's constant

Stefen's constnat

Planck's constant

Boltzmann's constant

None of these

Blood pressure is measured by the instrument

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stethoscope

sphygmomanometer

barometer

none of them

The ohm's is defined as

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1 ampere / 1 volts

1 coulomb / 1 volt

1 volt / 1 ampere

1 volt / 1 coulomb

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

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avometer

millimeter

voltmeter

none of these

If the vector 5 N lies along with x-axis, then its component along y-axis will be:

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Zero

5 N

7 N

10 N

The SI unit of flux density is.

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Tesla

Weber

Gaun

Weber/meter

Alfa particles are

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hydrogen nuclei

helium nuclei

electrons

photons

If the water falls from a dam into a turbine wheel 19.6 m below,then the velocity of water at the turbine is

(Take g = 9.8 m/s²)

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9.8 m/s

19.6 m/s

39.2 m/s

98.0 m/s

Which one the following gives three regions of electromagnetic sepctrum in order of increasing wavelength?

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Gamma rays, micro waves, visible light

Radio waves, ultraviolet waves, X-rays

Ultraviolet rays, Infrared rays, micro waves

Visible light, gamma rays, radio waves

The electrical behavior of semiconductor depends on the material purity which is

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Sensitive

Extremely sensitive

Non-sensitive

None of these

A bullet train move with the velocity of

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400 Kmh^-1

460 Kmh^-1

500 Kmh^-1

510 Kmh^-1

The process of doping causes resistivity of semiconductor to

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Increase

Decrease

Same

Become zero

Maximum height of a bullet when fired at 30° with horizontal is 11 m.Then height when it is fired at 60° is

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22 m

6 m

33 m

7.8 m

If the object of different masses move with the same velocity, then it is more difficult to stop the

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lighter of the two

massive of the two

any one of them

both of them

The cars usually have cylinders on the crankshaft are

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2

3

4

6

The lower refractive index the fibre core has

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1.48

1.40

1.54

1.42

The relativistic mechanics in which object move

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Less than C

Greater than C

Equal to C

Approach to C

A ball is thrown with a speed of 30 ms^-1in a direction of 30° with the ground. What will be its horizontal range?

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40 m

60 m

80 m

100 m

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