
OCN-U3

Quiz
•
Engineering
•
University
•
Hard
Mekala k
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. What does the acronym LASER stand for?
a) Light and Sound Energy Resonance
b) Light Amplification by Spontaneous Emission of Radiation
c) Light Amplification by Stimulated Emission of Radiation
d) Light Absorption by Stimulated Emission of Rays
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Which of the following is a key characteristic of laser light?
a) Divergent
b) Incoherent
c) Monochromatic
d) Omnidirectional
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. The process of stimulated emission occurs when:
a) An electron absorbs energy
b) A photon triggers an excited electron to emit a photon
c) Electrons are in the ground state
d) Electrons are repelled by protons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. In a laser, what role does the optical cavity play?
a) Absorbs photons
b) Amplifies light by allowing stimulated emission
c) Excites electrons to higher energy levels
d) Produces incoherent light
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. What is population inversion in the context of lasers?
a) A state where there are more electrons in the ground state than in the excited state
b) A state where more atoms are in the excited state than the ground state
c) A state where atoms are in random energy states
d) A state where no emission occurs
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Which type of laser is most commonly used in laser pointers?
a) Gas laser
b) Diode laser
c) Solid-state laser
d) Dye laser
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. He-Ne laser emits light in which region of the electromagnetic spectrum?
a) Ultraviolet
b) Infrared
c) Visible (red light)
d) X-ray
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