SMART INSTITUTE NMDCAT PHYSICS 2ND HALF

A detailed illustration of a physics classroom filled with students studying, with equations and diagrams on the blackboard, featuring elements like magnets, transformers, and wave-particle duality concepts.

Master NMDCAT Physics Quiz

Test your knowledge and understanding of key physics concepts crucial for the NMDCAT. This engaging quiz features 35 carefully crafted questions that cover essential topics in the second half of the physics syllabus.

Challenge yourself and see how well you know:

Work and Energy
Current and Resistance
Magnetism
Transformers
Rectification
Wave-Particle Duality

35 Questions9 MinutesCreated by ThinkingWave42

2-If the potential difference across the two plates of a parallel plate is doubled then its energy stored in it will be

2 times

16 times

4 times

Remains same

3-OHow many electrons per second constitute a current of one micro ampere

One electron

10^6 electrons

10^-6 electron

6.25 x 10^12 electrons

4-Out of the two bulbs in a house, one glow brighter than the other. Which of the following has larger resistance

The brighter bulb

Both have same resistance

The dim bulb

Brightness does not depend on resistance

5-If n resistances are connected in series and then parallel the ratio of equivalent resistance from series to parallel is

1:n

1:n^2

N:1

N^2 :1

6-If the potential difference across a conductor is doubled the rate of heat production will become

Double

Half

2 times

Four times

8-The direction at a point on the magnetic field lines of force can be taken along

Normal at that point

The tangent at that point

Axis of the magnetic line of force at that point

Can,t be taken

10-Magnetic field is caused by

Stationary charges

A moving positive charge only

A move negative charge only

Moving negative and positive charges both

11-Two parallel wires carrying current in opposite direction

Repel each other

Attract each

No effect on each other

None of these

12-If a charge particle enters a uniform magnetic field, there is a change in its

Kinetic energy

Magnitude of velocity

Direction of velocity

All of these

13-A current flows in a conductor from east to west. The direction of the magnetic field at a point above the conductor

Towards south

Towards east

Towards north

Towards west

14-An electron enters in a uniform magnetic field making an angle 60 with field. The shape of its trajectory in magnetic field is

Circle

Parabola

Straight line

Helix

15-The radius of curvature of the path of the charged particle in a uniform magnetic field is directly proportional to

The energy of the particle

The momentum of the particle

The intensity of the field

The charge on the particle

17-...........is the energy expanded to magnetize and demagnetize the core material in each cycle of the A.C

Power loss

Hysteresis loss

Heat loss

All of above

18-When a wire loop is rotated in a two poles of magnetic, the direction of e.m.f change once in every

1 revolution

2 revolution

1/4 revolution

1/2 revolution

19-Primary secondary coils of a transformer have 50 and 200 turns respectively. When primary is connected to 9 volt battery secondary voltage is

Zero

21-In full wave rectification, the output D.C voltage across the load is obtained for......

The positive half cycle of input A.C

The negative half cycle of input A.C

The complete cycle of input A.C

All of above

22-If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be

50 Hz

100 Hz

70.7 Hz

25 Hz

23-Output of half wave rectifier is suitable only

To operate radio

For running a D.C motor

Charging batteries

All of these

27-Lyman series of H-atoms lie in the ................ Region of EM spectrum

Visible

Infrared

Ultraviolet

Red

28-Photon A has twice the energy of photon B. What is the ratio of the momentum of A to that of B?

2 : 1

1 :1

1 :2

NONE

30-Of the following moving with same momentum , the one which has largest wavelength is

An electron

A proton

An alpha particle

All have same de-Broglie wavelength

33-When a radioactive nucleons emits a Beta-particle the mass number of atom

Increases by 1

Remains same

Decreases by one

Decreases by four

34-A radioactive decay rate of radioactive elements is found to be 10^3 disintegration per sec at a certain time. If the half life of the element is 1 second, the decay rate after one second is ........ And after 3 second is ............

500, 125

1000, 1000

125, 500

100, 10

SMART INSTITUTE NMDCAT PHYSICS 2ND HALF

Master NMDCAT Physics Quiz

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