Question # 1

The dimension of stress is

Choose an answer

[MLT^-1]

[ML^-1T]

[ML^-1T^-1]

[ML^-1T^-2]

The mean value of A.C. in a cycle is.

Choose an answer

1

0

I2

Nil

Drift velocity of electrons is.

Choose an answer

10^-1 m/s

10^-2 m/s

10^-3 m/s

10³ m/s

Controlling rods inserted into the reactor are of metal:

Choose an answer

Aluminium

Cadmium

Magnesium

Copper

The number of electrons emitted depends upon

Choose an answer

Colour of target surface

Shape of surface

Frequency of incident light

Intensity of incident light

1 rad =

Choose an answer

0.001Gy

0.01Gy

0.1Gy

1.01Gy

If a charged body is moved against the electric field it will gain.

Choose an answer

P.E.

K.E.

Mechanical energy

Electrical potential energy

The minimum frequency needed to emit an electron form metal surface is called:

Choose an answer

Work function

Threshold frequency

Quanta frequency

All of above

An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately

Choose an answer

50 Hz

100 Hz

80 Hz

120 Hz

The photoelectric effect predicts that light is made of

Choose an answer

Photons

Neutrons

Protons

None of these

Gauss's law can only be applied to.

Choose an answer

A curved surface

A flat surface

A closed surface

A surface of any shape

When some di electric is inserted between the plates of a capacitor, then capacitance.

Choose an answer

Decreases

Increases

Becomes zero

Becomes infinity

An electron moves at 2 x 10² m/sec perpendicular to magnetic field of 2T what is the magnitude of magnetic force:

Choose an answer

1 x 10^-6 N

6.4 x 10^-17 N

3.6 x 10^-24 N

4 x 10⁶ N

The crystalline structure of NaCl is.

Choose an answer

Cubical

Hexagonal

Tri gonal

Tetragonal

The stopping potential for a certain metal is 10 volts. Thus work function for the cathode is.

Choose an answer

10 J

1.6 X 10^-18 J

1.6 X 10^-19 J

1.6 X 10³⁰ J

The magnitude of back emf:

Choose an answer

Increases with sped of motor

Decreases with speed of motor

Remains same

None of above

The Balmer series is obtained when all the transition of electrons terminate on

Choose an answer

1^st orbit

2nd orbit

3rd orbit

4th orbit

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Choose an answer

100 Ohm

10 Ohm

1000 Ohm

1 Ohm

More Classes

Other Links

Ics Part 2 Physics Test Online 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