Question # 1

Which remains constant in an adiabatic process.

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Volume

Pressure

entropy

temperature

How many orbiting satellites from the Global positing system.

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3

12

24

22

A system does 600 J of work and at the same time has its internal energy increased by 320 J. How much heat has been supplied.

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28o J

920 J

600 J

200 J

The ability of a body to do work is called its

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Force

Power

Capacity

Energy

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

Frequency range of hearing of cats is.

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20-20000 Hz

10- 10000 Hz

60-20000 Hz

60-70000 Hz

The minimum number of correctly positioned communication satellites to cover whole populated earth is.

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2

3

100

200

A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.

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4.4 ms-1

10 ms-1

6.2 ms-1

20 ms-1

Critical angle is that angle of incident ofr which angle of refraction is.

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90 ^o

45 ^o

42 ^o

24 ^o

According to Hygen's principle, each point on a wave front acts as a source of.

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Secondary wavelet

New wave front

Sound

Primary wavelet

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

The Bragg's equation is given by

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If the radius of droplet becomes half, then its terminal velocity will become.

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Double

Half

One fourth

Remains same

When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is.

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5000 m

50000 A^o

500 cm

2000 A^o

The dimension of power is

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MLT-1

ML2T-2

ML2T2

ML2T-3

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

A force of 10N makes an angle 30o with y axis. Then magnitude of x -component is.

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5 N

8.66 N

10 N

Zero

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