Question # 1

Two dissimilar metals joined at their ends kept at constant temperature constitute:

Choose an answer

Cell

Voltmeter

Thermocouple

Potentiometer

None of these

Scalar product is also called:

Choose an answer

Cross product

Dot product

Product scalar

Product vector

The expression for restoring force is

Choose an answer

F=ma

F=kx

F= -kx

Kx=ma

The rate of change of momentum of a molecule is equal to:

Choose an answer

Pressure

Work

Density

Force

A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is:

Choose an answer

0.05 m

0.08 m

0.8 m

0.008 m

The fourth band is a:

Choose an answer

Silver band

Red band

Gold band

Either A or C

Either A or B

Practically the quantity v/c is always:

Choose an answer

less than one

Equal to one

Greater then one

all of these

None of these

In magnet-coil experiment, emf can be produced by:

Choose an answer

Keeping the coil stationary and moving the magnet

Keeping the magnet stationary and moving the coil

Relative motion of the loop and magnet

Any one of above

All above

When a body moves along a circular path with constant speed, it has an acceleration, which is always directed

Choose an answer

Along the tangent

Towards the centre

Away from the centre

None of them

When brakes are applied to a fast moving car, the passenger will be thrown:

Choose an answer

Forward

Backward

Downward

none of these

Two forces of 10N and 8N are applied simultaneously to a body. The maximum value of their resultant is:

Choose an answer

20 N

-2 N

18 N

36 N

The motion in a plane is the motion in

Choose an answer

one dimensions

two dimensional

three dimensional

all of them

A thin layer of oil on the surface of water looks colored due to:

Choose an answer

Diffraction of light

Reflection of light

Dispersion of light

Interference effect of light

The efficiency of a practical heat engine:

Choose an answer

Can be 100%

Can not be 100%

Is always Zero

None of these

Huygen's wave front which sends out secondary wavelets with a speed equal to

Choose an answer

Speed of propagation of the wave

Speed of propagation greater than wave

Speed of propagation less than the wave

None of these

The valency of electron in the valence band is known as

Choose an answer

Atom

Molecule

Hole

None of these

Unit of angular displacement is

Choose an answer

Degree

Revolution

Radian

All

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

Choose an answer

2.0 mm

1.0 mm

4.0 mm

0.5 mm

When interference of light takes place

Choose an answer

Energy is created in the region of maximum intensity

Energy is destroyed in region of maximum intensity

Conservation of energy hold goods and energy is redistributed

Conservation of energy does not hold good

In CGS system the units of dynamic viscosity are

Choose an answer

Nsm^-2

Poise

Nm^-2

None of these

A body moving with uniform velocity has

Choose an answer

positive acceleration

negative acceleration

infinite acceleration

zero acceleration

An inertial frame of reference in which acceleration is

Choose an answer

Very high

Very very low

Zero

None of these

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