11)

Photoelectric effect explanation and theory of relativity was given by

Class 11 Physics

A)

Albert Einstein

B)

Galileo Galilei

C)

Isaac Newton

D)

Michael Faraday

12)

Laws of electromagnetic induction was given by

Class 11 Physics

A)

Galileo Galilei

B)

James Clerk Maxwell

C)

Michael Faraday

D)

J JThomson

13)

Cosmic radiation was given by

Class 11 Physics

A)

Victor Francis Hess

B)

W K Roentgen

C)

J J Thomson

D)

James Clerk Maxwell

14)

Quantum model of hydrogen atom was discovered by

Class 11 Physics

A)

Niels Bohr

B)

C. V. Raman

C)

R. A. Millikan

D)

None

15)

The exclusion principle was given by

Class 11 Physics

A)

Wolfgang Pauli

B)

Niels Bohr

C)

C. V. Raman

D)

None

16)

The discovery of neutron was given by

Class 11 Physics

A)

James Chadwick

B)

James Clerk Maxwel

C)

J. J. Thomson

D)

Niels Bohr

17)

Nuclear reactors are based on

Class 11 Physics

A)

Nuclear fusion

B)

Controlled nuclear fission

C)

Nuclear fission

D)

None

18)

The scientific principle used in computers is

Class 11 Physics

A)

Digital logic

B)

Photoelectric effect

C)

Superconductivity

D)

None

19)

LASER stands for

Class 11 Physics

A)

Both a and b

B)

Light amplification by stimulated emission of radiation

C)

Light attenuation by stimulated emission of radiation

D)

None

20)

Production of ultra high magnetic fields is based on the scientific principle of

Class 11 Physics

A)

Superconductivity

B)

Electromagnetism

C)

Digital logic

D)

Photoelectric effect