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Free download in PDF Light Objective Type Questions & Answers for competitive exams. These Light Objective Type Questions with Answers are important for competitive exams like IIT, JEE, NEET, AIIMS, JIPMER and Board Exams etc.
(21)
We see the image of our face when we look into the mirror. It is due to:
[A]
Interference
[B]
Diffraction
[C]
Polarisation
[D]
Reflection
(22)
Way of light is always in a
[A]
bend path
[B]
straight line
[C]
convergent path
[D]
divergent path
(23)
The image formed on a cinema screen is an example of:
[A]
Real Image
[B]
Virtual Image
[C]
Point Image
[D]
Plane Image
(24)
Our eyes detect light in
[A]
RGB form, Red Blue Green form
[B]
ROYGBIV, rainbow color form
[C]
The simple form of a particular color
[D]
None of these ways
Answer: ROYGBIV, rainbow color form
(25)
Symbol to represent speed of light in vacuum or air is
(26)
Mid-point between lens surface and principle axis is termed as
[A]
Optical center
[B]
Midway center
[C]
Focal center
[D]
Focal point
(27)
Light can travel in
[A]
Air only
[B]
Vacuum only
[C]
Both air and vacuum
[D]
None of the mediums
Answer: Both air and vacuum
(28)
Reflection obtained from a smooth surface is called a
[A]
Irregular reflection
[B]
Regular reflection
[C]
Both a and b
[D]
None
Answer: Regular reflection
(29)
Cyan, yellow and magenta are
[A]
Primary colors
[B]
White colors
[C]
Tertiary colors
[D]
Secondary colors
(30)
Point at which all rays converge is termed as
[A]
Converging point
[B]
Focal point
[C]
Focal center
[D]
Converging center
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