Question # 1

Inertia mass and gravitational mass are

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opposite

identical

identical when there is no friction

all of them

According to Einstein, with the great increase in the speed of the body, the relativistic mass of the body

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Remains constant

Decreases

Increases to infinity

Reduced to zero

Conventionally, all the distance p, q, f are measured from _____ of the lens:

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Focus

Optical center

Edges

None of these

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

The velocity of falling raindrop attains limited value because of

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Up trust of air

Viscous force exerted by air

Surface tension effect

Air currents atmosphere

At low speeds, the drag force is

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proportional to speed

inversely proportional to speed

not simply proportional to speed

none of them

Which one is the least multiple:

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Pico

Femto

Nano

Atto

The r.m.s value of a.c. current is always

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positive

negative

zero

all of these

For inducting emf in a coil the basic requirement is that:

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Flux should link the coil

Change in flux should link the coil

Coil should form a closed loop

Both B and C are true

Particles have the mass smallest of following is:

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Electron

Proton

Neutron

Quark

Charge on proton is

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1.59 x 10^-9C

1.59 x 10^-7C

-1.59 x 10^-19C

1.59 x 10^-19C

George Stoke found the effect of viscous drag on small sphere falling through liquids in

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1782

1851

1902

1947

Angular displacement generally expressed in

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Degrees

Revolution

Radian

All of these

When the body is at rest the relation

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W - T = ma

T - W = ma

T = W

None of these

The maximum wavelength of a transverse wave that can be set up in a string of length Lis

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L

2L

V

4L

To demonstrate the phenomenon of interference we require two sources that emit radiation

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Of same frequency

Different wavelength

Of the same frequency and having definite phase relationship

Of nearly the same frequency

Once heat is transferred to an object, it is converted into the

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Entropy of the object

Internal energy of the object

Temperature of the object

None of these

Approximate power of Jumbo. Let Aircraft in watts.

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1.2 × 10⁶

1.3 × 10⁸

1.2 × 10⁸

1.1 × 10⁹

When two lights waves travelling in the same direction are in phase at any point, they producing

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constructive interference

destructive interference

dispersion

polarization

The value of the orbital radius measured for the centre of the Earth

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4.29 × 10⁵ km

4.23 × 10⁶ km

4.23 × 10⁴ km

4.23 × 10⁶ km

At points where the crest (or trough) of one wave coincides with the crest (or trough) of the other wave, the wave produces

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destructive interference

constructive interference

diffraction

dispersion

Physics is an important and basic part of physical sciences which is a

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Mathematical science

Experimental science

Statistical science

None of these

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