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MCQ Questions on Laser Physics. We covered all the MCQ Questions on Laser Physics in this post for free so that you can practice well for the exam.
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MCQ Questions on Laser Physics for Students
The first type of laser invented by scientists was known as
a. Pulse laser
b. Pulsed laser
c. Permanent laser
d. None of these
Option b – Pulsed laser
The invention of the first pulsed laser took place in
a. 1964
b. 1954
c. 1960
d. 1968
Option c – 1960
The fundamental theory behind the working of lasers was initially proposed by Dr. Charles and H. Townes in
a. 1954
b. 1960
c. 1964
d. 1950
Option a – 1954
A laser can be described as
a. A light source with typical properties
b. A light source with exceptional features
c. An energy source with advanced properties
d. An energy source with regular characteristics
Option b – A light source with exceptional features
Among the following, the monochromatic light source is
a. The Sun
b. An incandescent bulb
c. Sodium vapor lamp
d. Candle flame
Option c – Sodium vapor lamp
Laser light characteristics are absent in the light emitted by
a. The Sun
b. Incandescent lamp
c. Sodium vapor lamp
d. All of these
Option d – All of these
The number of unique and remarkable features that distinguish laser light from ordinary light is
a. 2
b. 3
c. 4
d. 5
Option c – 4
When electrons return to a lower energy state in atoms, the energy released in the form of light is known as
a. Visible light
b. Laser light
c. Ultraviolet light
d. None of these
Option a – Visible light
ICBM refers to
a. Inter-Continental Ballistic Missile
b. Inter-Country Ballistic Missile
c. Inter-Community Ballistic Missile
d. All of these
Option a – Inter-Continental Ballistic Missile
The foundational laser theory was first introduced by
a. Rontgen
b. J.J. Thomson
c. Dr. Charles and H. Townes
d. Einstein
Option c – Dr. Charles and H. Townes
In which type of light source do electrons undergo random transitions, leading to uncoordinated light waves?
a. Conventional light sources
b. Laser sources
c. Both of these
d. None of these
Option a – Conventional light sources
In laser light production
a. Electrons transition in a synchronized manner, producing waves with fixed phase relations
b. Electrons transition randomly, producing waves with no fixed phase relationship
c. Electrons transition randomly, but waves still show fixed phase relation
d. None of these
Option a – Electrons transition in a synchronized manner, producing waves with fixed phase relations
When electrons transition in a well-organized pattern, and light waves maintain a stable phase relation, the resulting light is said to have
a. Incoherence
b. Temporal coherence
c. Directionality
d. High intensity
Option b – Temporal coherence
The most defining feature of laser light is its
a. Coherence
b. Directionality
c. Single color property
d. Brightness
Option a – Coherence
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