Question # 1

The number of translation degress of freedom for a diatomic gas is

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2

3

5

6

When a shall explodes a mid-air, the total momentum of its fragments is

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less than the momentum of shell

equal to the momentum of shell

greater than the momentum of shell

none of them

The minimum charge on any object can not be less than

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1.6 x 10^-19C

3.2 x 10^-19C

1.0 C

4.8 x 10^-19C

Laplace formula is derived from

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Isothermal change

Adiabatic change

Isobaric change

None of these

The work done on the system by the environment is considered as

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positive

negative

zero

any one of them

The inkjet printer eject a thin stream of:

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Water

Oil

Ink

Any above

None of these

When quarter of a circle is completed, the phase of vibration is:

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90°

180°

45°

360°

If the object and its image are located at a distance of 5 cm from the focus of a convex lens, the focus length of the lens will be:

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5 cm

10 cm

20 cm

25 cm

The value of output resistance of OP-AMOP is of the order of

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few ohms

few hundred ohms

several kilo ohms

several mega ohms

An emf is set up in a conductor when it

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Is kept in a magnetic field

Is kept in an electric field

Moves across a magnetic field

Both A and B

None of these

U-238 present in the natural uranium is about:

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59%

0.007%

99%

39%

19%

The electrical conductivities of insulators are ranging from

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10^-5to 10^-10(Ω m)^-1

10^-10to 10^-15(Ω m)^-1

10^-5to 10^-15(Ω m)^-1

10^-10to 10^-20(Ω m)^-1

Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?

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1/2

2/3

3/2

2/1

Physical sciences deals with

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Living things

Nonliving things

Both living and non- living

Non of these

How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10^-3 mm

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200

300

20.4

2.3

The moon produces the tides raise the water in the sea roughly

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Once a day

Twice a day

Several a day

None of these

To make a permanent magnet, a material should have

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hihg retentivety and small coercive force

low retentivety and high coercive force

low retentivety and small coercive force

high retentivety and high coercive force

The escape velocity of Venus in Kms^-1

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5.28

8.24

10.02

10.4

The total linear momentum of an isolated system remains

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Constant

Variable

Zero

None of these

For the normal setting of a telescope

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Only the object is at infinity

Only the final image is at infinity

Both the object and the final image is at infinity

Neither the object nor the final image has to be at infinity

Conventionally, clock-wise torque is taken as

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Negative

Positive

Zero

None of these

A fly wheel of moment of inertia 500 kgm² is rotating at a angular speed of 6 rad s^-1. What torque is need to stop the wheel in 3 sec ?

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500 Nm

100 Nm

1500 Nm

2000 Nm

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