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Physics quantum

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

A black body can emit thermal radiation depending on its _______.

a)

Pressure

b)

Volume

c)

Temperature

d)

Light intensity

2.

_______ is a discrete energy packet and not a continuous energy.

a)

Quantum theory

b)

Quantum of energy

c)

Photon

d)

Wave-Particle Duality

3.

A particle is said to have wave-particle duality when that particle exhibits the properties of both _______ and _______.

a)

Wave, Atom

b)

Wave, Light

c)

Electron, Particle

d)

Wave, Particle

4.

Max Planck's great discovery was that radiation energy is emitted in packets that he called

a)

quanta

b)

wave functions

c)

photons

d)

electrons

5.

A black body in thermal equilibrium emits electromagnetic radiation. Which of the statements below are correct?

a)
  • The radiation has a specific spectrum and intensity that depends only on the temperature of the body

b)

Max Planck described the radiation by assuming that the electromagnetic radiation was emitted in discrete energies

c)

A black body is an idealized object which emits all frequencies

d)

i dont know anything because im sleepy and busy playing with my phone

6.

True or False? The wavelength and frequency of all waves are inversely proportional to each other.

a)

True

b)

False

7.

State the application in Einstein photoelectric theory.

a)

Detector/Sensor

b)

Power supply

c)

Image intensifier

d)

Analysis of materials

8.

Phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. This is a definition for...

a)

Photoelectric effect

b)

Black body radiation

c)

Black body

d)

Light spectrum

9.

The factors that affect photoelectric effects are....

a)

frequency of light

b)

intensity of light

c)

nature of material

d)

energy of light

e)

potential difference

10.

Choose the correct answer

a)

A

b)

B

c)

C

d)

D