Question # 1

Angular momentum

Choose an answer

Scalar

Axial vector

Polar vector

At 45° angle

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

Choose an answer

2V

3V

0.5V

V

A magnetic force on an electron travelling with 10⁸ms^-1parallel to a field of strength 1 Wb m^-2is

Choose an answer

Zero

10⁵m

10^-10N

10⁸N

Improper biasing of a transistor circuit produces

Choose an answer

Heavy loading of emitter current

Distortion in the output signal

Excessive heat at collector terminal

Faulty location of load line

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Choose an answer

kg

kg-meter

kg/meter

Meter/kg

The magnitude of the resultant of two forces may be increased by:

Choose an answer

Increasing the angle between them

Decreasing the angle between them

Drawing a triangle to represent them

None of these

What must be changing when a body is accelerating uniformly?

Choose an answer

the force acting on a body

the velocity of the body

the mass of the body

the speed of the body

An emf is set up in a conductor when it

Choose an answer

Is kept in a magnetic field

Is kept in an electric field

Moves across a magnetic field

Both A and B

None of these

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Choose an answer

1 : 2 : 3

1 : 3 : 5

1 : 4 : 9

None of the above

The study of fluid in motion basically involves law of conservation of:

Choose an answer

Mass

Energy

Change

Both A and C

Both A and B

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Choose an answer

Longitudinal wave

Transverse wave

No vibration at all

None of them

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

Choose an answer

constructively

destructively

either of them

none of them

What will be efficiency of carnot engine when it is operated between the temperatures 47^oC and 127 ^oC:

Choose an answer

Reversible

Irreversible

Sometimes A and B

None of these

Two forces P and Q have a resultant Perpendicular to P.the angle between the forces is:

Choose an answer

tan^-1 (-P/Q)

tan^-1(P/Q)

sin^-1(P/Q)

cos^-1 (-P/Q)

In order to increase the K.E of ejected photo electrons, there should be an increase in:

Choose an answer

Intensity of radiation

NoneI

Frequency of radiation

Both (b) & (c)

A ball whose kinetic energy E, is thrown at an angle of 45° with horizontal,its kinetic energy at highest point of flight is

Choose an answer

E

E / √2

E/2

Zero

Fraunhofer spectrum is a

Choose an answer

Line absorption spectrum

Band absorption spectrum

Line emission spectrum

Band emission spectrum

When two objects come to common temperature, the body is said to be in:

Choose an answer

Static equilibrium

Dynamic equilibrium

Thermal equilibrium

None of these

The K.E.of a light and a heavy object is same.Which object has maximum momentum?

Choose an answer

Light object

Heavy object

Both have the same momentum

Data is not sufficient

The internal energy depends on

Choose an answer

Path

Initial and final states of the system

Time

None of these

In case of interference fringes:

Choose an answer

Energy is destroyed at dark

Energy is created at bright fringes

Energy is transferred from dark to bright ringes

None of these

A closed organ pipe and an open organ pipe have their first overtones of identicalfrequency. Their respective lengths are in the ratio:

Choose an answer

1 : 2

4 : 3

2 : 3

3 : 5

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