Question # 1

The value of the Stephen's constant for black body radiations is given by

Choose an answer

5.6 x 10⁸Wm^-2K^-4

5.67 x 10^-8Wm^-2K^-4

2.9 x 10^-3mK

2.9 x 10³mK

The change of magnetic flux through a circuit will produce

Choose an answer

Magnetic Field

Electric Field

emf

a.c

The ratio of the size of the image to that of object is called:

Choose an answer

Focal length

Aperture

Linear magnification

Principal axis

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Choose an answer

Cylinder

Box

Sphere

Circle

Rectangle

The resistivity of a substance depends upon the

Choose an answer

length

mass

area

temperature

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Choose an answer

increasing speed

decreasing speed

constant speed

none of them

Two electric bulbs of 200 W and 100 W have same voltage. If R₁and R₂be their resistance respectively then

Choose an answer

R₁= 2R₂

R₂= 2R₁

R₂=4R₁

R₁= 4R₂

A metastable stae:

Choose an answer

Is an excited state

Is that in which excited electron is stable

Is that in which excited electron is usually unstable

Means a time interval of 10^-8second

Both (A) and (C)

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Choose an answer

the driving force is large

the driving force is zero

the driving force may be feeble

all of them

The basis to define a temperature scale that is independent of material properties is provided by

Choose an answer

carbon cycle

nitrogen cycle

Carnot cycle

irreversible cycle

The CRO is used for displaying the waveform of a given

Choose an answer

current

voltage

both of them

none of them

The power output of a full wave rectifier is:

Choose an answer

Equal to H.W.R

Twice of H.W.R

Half of H.W.R

Four times of H.W.R

When the object lies between F and 2F the image formed by a convex lens is

Choose an answer

Real

Virtual

Diminished

Erect

The work done by the gas during the isobaric expansion is equal to

Choose an answer

Area of rectangle

Area of triangle

Area of parallelogram

None of these

What is work done in hitting a 10 kg load of bricks to the top of a building 20 m height ?

Choose an answer

98 J

200 J

980 J

1960 J

The travel time of light from Moon to Earth is

Choose an answer

2 min 10 sec

1 min

1 min 20 sec

3 min 30 sec

The spacing between lines of diffraction grating is

Choose an answer

Opaque

Transparent

Semi-transparent

None of these

At what point/points in its path does a projectile have its maximum speed

Choose an answer

At the point of projection

At the point where its strikes the ground

Both

None of these

The fluid which is incompressible and non viscous is called

Choose an answer

Ideal fluid

Non ideal fluid

Perfect fluid

All

If both the length and radius of rod are doubled, then the modulus of elasticity will:

Choose an answer

Increase

Decrease

Remains the same

Doubled

The speed of light in vacuum or in air is

Choose an answer

3 x 10¹⁰ m ! s

3 x 10⁹ m ! s

3 x 10⁸ m ! s

3 x 10⁷ m ! s

An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as

Choose an answer

magnetic

magnetic dipole

magnetic monopole

none of them

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