# Physics Solved Quiz Test With Answers MCQs

Physics Subject Specialist In Punjab Labour & Human Resource Department Past Papers MCQs online quizzes with solved answers. All of these Objective type MCQs are helpful for upcoming jobs tests Preparations. Physics Objective type questions with solutions learn here.

#### Physics Solved MCQs Online Quiz Test

Q.1: If n number of the photon is striking on a metal surface then total momentum exerted is——–?

1. p
2. n
3. 0
4. None

A

Q.2: A photon of wavelength 900nm behaves like a particle of mass——-?

1. 5.53 x 10-36kg
2. 0 kg.
3. 2.46 x 10-36kg
4. 1.84 x 10-44kg

C

Q.3: The velocity of a particle of mass m of de-Broglie wavelength λ is——-?

1. v = 3 ×× 106 ms-1
2. v = 2 ×× 10 ms-1
3. v = 2 ×× 6 ms-1
4. v = 2 ×× 106 ms-1

D

Q.4: In Davisson-Germer experiment the diffracted proton from crystal shows——-?

1. Particle property
2. Wave property
3. Light property
4. Quantum property

B

Q.5: If a diffraction grating is placed in the path of a light beam it reveals——-?

1. Wave property
2. Particle property
3. Energy particle
4. Electromagnetic wave property

A

Q.6: In an electron microscope, we use energetic particles because of——-?

1. Penetrating power is high
2. Kinetic energy is large
3. Wavelength is very short
4. All the above reasons

C

Q.7: In the electron microscope, electric And magnetic fields are used as——–?

1. Electromagnetic gun
2. Source of electromagnetic waves
3. Deflecting charged particle
4. Converging source of electrons

D

Q.8: A three-dimensional image is obtained by——–?

1. Electron microscope
2. Scanning electron microscope
3. Magnetic imaging
4. None of the above

B

Q.9: The uncertainty in momentum And position is due to its——-?

1. Property of matter and radiation
2. Two-dimensional motion
3. Emission of the certain wavelength
4. Very high velocity

A

Q.10: For confinement of electron in a box of radius 10-14m the electron, speed should be——-?

1. 107m/sec
2. greater than the speed of light
3. Be zero
4. Not be wave-like

B