Question # 1

Which is not the essential component of a spectrometer.

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Collimator

Telescope

Turntable

Microscope

In stationary waves, the velocity of particle at the node is.

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Maximum

Infinite

Zero

Varible

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

3 Joules of work id done is 3 seconds, then power

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6 Watt

1 Watt

3 Watt

2 Watt

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

In Michelson's experiment the relation used to find the speed of light is

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16 fc

1/16 fd

16 fd

16/fd

Force 12 N and 5 N are add, the resultant con not be

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13 N

6 N

7 N

17 N

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

When two waves having same frequency traveling in same direction combine, phenomenon is called

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Wave motion

Combination of waves

Interference

Diffraction

Soap film is sunlight appears coloured due to.

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Dispersion of light

Diffraction of light

Scattering of light

Interference fo light

The fundamental quanties which form basic for M.K.S system are

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Mass , Length , and time

Mass, acceleration and time

Mass, work and time

Velocity, force and time

Dimensional analysis helps in

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To convert one unti into another

Finding relation between quantities

To confirm the correct answer

All of the abvove

Pressure 'P' of a gas is defined as

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F/A

FA

F/V

F/D

Which one of the scientist made some contribution to geometrical optics?

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Phythagoras

Archimedes

Euclid

Plato

Half wavelength corresponds to

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0 ^o

90 ^o

180 ^o

360 ^o

Teh overlapping of physics and other fields gave brith to

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Interdisciplinary areas of physics

Areas of Physics

Areas of science

All of these

When hot and cold water are mixed, the entropy.

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Decreases

Increases

Remain constant

Zero

In sonar we use

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Sound waves

Ultrasound waves

Microwaves

Radio waves

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