Question # 1

Compton shift is maximum for scattering angle of photon

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0^o

90^o

180^o

45^o

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

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Energy

Power

Acceleration

Angular momentum

Which one of the following paved the way for modern physics

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Newtonian mechanics

Theory of relativity

Quantum theory

All of above

If the energy of photon is 10 eV and work function is 5 eV, then the a value of stopping potential will be

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50 V

2 V

5 V

15 V

The Compton effect is associated with

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X-rays

y-rays

Positive rays

ß-rays

Photo electrons are emitted y using visible light when the metal is.

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sodium

Copper

Nicked

Cobalt

Compton's effect is associated with

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gamma rays

Beta rays

X rays

Positive rays

The energy of the photon of wavelength 500 nm is.

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3.10 eV

2.49 eV

1.77 eV

1.52 eV

The wavelength associated with the protons moving at speed of 40 m/s is.

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7.20 nm

9.02

15.7 nm

17.3 nm

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

By modern system of NAVSTAR, the speed any where on the earth can be determined to accuracy about.

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20 ms-1

10 ms-1

2 cms-1

2 ms-1

Unit of Stephen's constant is

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W m K^-2

W m^-2 K^-4

W m K^-4

None

The most refined form of matter is:

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Smoke

Light

Ice

Fog

unit of Plank's constant is same as that of.

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Acceleration

Angular momentum

Linear momentum

Entropy

Application of wave like nature of particle is

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Photodiode

Optical microscope

Electron microscope

Compound microscope

Which is the most refined form of matter.

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Smoke

Fog

Light

Electron

Energy of Black body radiation depends upon

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Nature of surface of body

Nature of material of body

Shape and size of body

Temperature of the body

Maximum Compton shift is observed at.

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30^oC

90^oC

45^oC

180^oC

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

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