Rectilinear Propagation of Light NDA Questions

NDA Physics

Rectilinear Propagation of Light MCQ Questions

7.
Which law of physics explains the rectilinear propagation of light?
A.
Snell's law
B.
Ohm's law
C.
Newton's first law of motion
D.
Law of reflection
ANSWER :
C. Newton's first law of motion
8.
What happens to the path of light when it passes through a uniform medium?
A.
It bends
B.
It scatters
C.
It travels in a straight line
D.
It reflects
ANSWER :
C. It travels in a straight line
9.
Who first proposed the theory of rectilinear propagation of light?
A.
Isaac Newton
B.
Albert Einstein
C.
Galileo Galilei
D.
Johannes Kepler
ANSWER :
A. Isaac Newton
10.
What does "rectilinear propagation of light" refer to?
A.
Light traveling in a straight line
B.
Light traveling in a curved path
C.
Light traveling in a zigzag pattern
D.
None of the above
ANSWER :
A. Light traveling in a straight line
11.
Which color of light has the shortest wavelength?
A.
Red
B.
Yellow
C.
Green
D.
Violet
ANSWER :
D. Violet
12.
What happens to the speed of light when it enters a denser medium from a rarer medium?
A.
Increases
B.
Decreases
C.
Remains the same
D.
Depends on the color of light
ANSWER :
B. Decreases