Question # 1

The analysis of the distribution of wavelengths of the radiation emitted from a hot body set the foundation of new mechanics, known as

Choose an answer

classical mechanics

Newtonian mechanics

quantum mechanics

statistical mechanics

The first shell near the neucles is

Choose an answer

L-shell

X-shell

N-shell

M-shell

Neon gas have three isotopes whose atomic numbers are

Choose an answer

20, 24 , 23

20, 21 , 22

20, 19 , 21

none of these

The density of blood is nearly equal to that of

Choose an answer

mercury

sodium

water

honey

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

Choose an answer

3

24

126

200

In SHM, there is always a constant ratio between displacement if body and its:

Choose an answer

Velocity

Period

Mass

Acceleration

The charge carriers in an electrolyte are

Choose an answer

Positive ions

Negative ions

Either A or B

Both A and B

Neither A nor B

The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately

Choose an answer

9.8

24 x 10¹⁹

24 x 10⁴²

24 x 10^-44

When low energy photon interact with a metal,which of the following effect is likely to be taken place

Choose an answer

pair production

photoelectric

Compton effect

None of these

The total energy of spring mass system is

Choose an answer

zero

changing with time

constant

none of them

For multiplication and division purposes, percentage uncertainties are:

Choose an answer

Add

subtracted

Multiplied

Divided

Stress that induces a change in the shape of the body is named as

Choose an answer

Tensile stress

Volumetric stress

Shear stress

None of these

Due to dispersion effects, white light source is useful for

Choose an answer

Long distance

Short distance

Very long distances

None of these

The direction of the acceleration is the same as that of

Choose an answer

Displacement

Velocity

Both

None of these

The terms phase difference and path difference are:

Choose an answer

Same

Different

Equal

None of these

As the working substance of a heat engine completes a cycle, there is no change in:

Choose an answer

Internal energy

Pressure

Volume

All of these

The superposition of the two waves of same frequency and amplitude travelling in the same direction gives rise to an effect called:

Choose an answer

Diffraction

Interference

Polarization

Dispersion

The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object

Choose an answer

Smaller

Larger

Very large

None of these

Why is the weight of an object approximately the same at all points on the earth?

Choose an answer

the gravitational field is uniform

equal force is exerted on the object at points equidistant from the centre

weight is unaltered by attitude

weight of an object varies with its distance from earth

An un-power and un-guided missile is called a

Choose an answer

rocket

ballistic missile

guided missile

none of them

SI unit of temperature

Choose an answer

Centigrade

Celsius

Kelvin

All of these

The terminal velocity of for a water droplet of radius 10^-5 m is of the order of

Choose an answer

1 cm/s

1 mm/s

1 nm/s

1 μm/s

More Classes

Other Links

Physics General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer