Question # 1

Anti particle of electron is

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Proton

Photon

Neutron

Positron

The value of Stefan is constant is:

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4.57 x 10^-8 m²k²

5.67 x10^-8 wm^-2k^-4

6.67x 10^-11 wm²k⁴

7.45 x 10^-9 m² wk³

The dimensions of Plank's constant is same as that of.

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Energy

Power

Acceleration

Angular momentum

Compton shift is maximum for scattering angle of photon

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0^o

90^o

180^o

45^o

The unit for Plank's constant is:

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Js^-1

Jm

Js

Jm²

Which one of the following physical quantities change with relativistic speed?

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Length

Time

Mass

All of above

The unit of Plank's constant 'h' is.

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JC

J/C

JS

J/S

Internal frame is a frame is which

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1st law holds

2nd law holds

3rd law holds

Kelvin's law holds

The photoelectric effect predicts that light is made of

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Photons

Neutrons

Protons

None of these

The existence of positron in 1928 was predicted by

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Anderson

Dirac

Chadwick

Plank

The number of electrons emitted depends upon

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Colour of target surface

Shape of surface

Frequency of incident light

Intensity of incident light

The special theory of relativity based on.

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One postulate

Two postulates

Three postulates

Four postulates

A positron is an anti particle of.

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Proton

Electron

Neutron

Photon

Number of electros emitted in photo electric effect depend upon.

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Intensity of incident light

Frequency of incident light

Energy of incident light

Wavelength of incident of light

Albert Einstein got noble prize for service in:

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Pair production

Annihilation of matter theory

Compton effect

Photoelectric effect

When platinum is heated is become dull red at:

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900°C

500°C

800°C

1100°C

Wave nature of light appears in

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Pair production

Compton effect

Photo electric

Interference

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Physics ICS Part 2 Chapter 19 Online MCQ's Test MCQs With Answers

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