Light: Mirrors and Lenses Class 8 MCQ Questions Science Chapter 10

These Class 8 Science MCQ and Class 8 Science Chapter 10 Light: Mirrors and Lenses MCQ Questions Online Test with Answers focus on both theory and practical applications.

Class 8 Light: Mirrors and Lenses MCQ with Answers

MCQ on Light: Mirrors and Lenses Class 8

Class 8 Science Chapter 10 Light: Mirrors and Lenses MCQ Questions with Answers

Question 1.
What makes objects visible?
(a) Absorption of light
(b) Emission of heat
(c) Reflection of light
(d) Refraction of light
Answer:
(c) Reflection of light

Question 2.
The angle between the incident ray and the normal is called:
(a) Angle of reflection
(b) Angle of incidence
(c) Critical angle
(d) Reflected angle
Answer:
(b) Angle of incidence

Question 3.
What type of reflection occurs from rough surfaces?
(a) Regular reflection
(b) Diffused reflection
(c) Total internal reflection
(d) Multiple reflection
Answer:
(b) Diffused reflection

Question 4.
Which mirror always forms a virtual, diminished image?
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) None of the above
Answer:
(c) Convex mirror

Question 5.
What is lateral inversion?
(a) Upside-down image
(b) Enlargement of image
(c) Left and right reversal
(d) Reduction of image size
Answer:
(c) Left and right reversal

Question 6.
What kind of image is formed by a plane mirror?
(a) Real and inverted
(b) Virtual and erect
(c) Magnified and real
(d) Reduced and virtual
Answer:
(b) Virtual and erect

Question 7.
Which lens converges light rays?
(a) Concave lens
(b) Convex lens
(c) Plane lens
(d) Cylindrical lens
Answer:
(b) Convex lens

Question 8.
What is the bending of light called when it passes from one medium to another?
(a) Reflection
(b) Refraction
(c) Dispersion
(d) Absorption
Answer:
(b) Refraction

Question 9.
Which lens is used to correct myopia (short-sightedness)?
(a) Convex lens
(b) Concave lens
(c) Plane mirror
(d) Prism
Answer:
(b) Concave lens

Light: Mirrors and Lenses Class 8 Fill in the blanks

Question 1.
A plane mirror has a flat _____________ surface.
Answer:
Reflecting

Question 2.
The angle between the normal and the incident ray is called the _____________
Answer:
Angle of Incidence

Question 3.
The angle between the normal and the reflected ray is called the _____________
Answer:
Angle of Reflection

Question 4.
The image formed in a plane mirror is _____________, _____________, and _____________
Answer:
Virtual, Erect, Laterally Inverted

Question 5.
A _____________ lens is thicker at the middle than at the edges.
Answer:
Convex

Question 6.
A _____________ lens is thinner at the middle than at the edges.
Answer:
Concave

Question 7.
The human eye uses a _____________ lens to form an image on the retina.
Answer:
Convex

Question 8.
A periscope uses _____________ to reflect light and allow observation around corners or obstacles.
Answer:
Mirrors

Light: Mirrors and Lenses Class 8 True or False

Question 1.
Light always travels in a straight line in a transparent medium.
Answer:
True

Question 2.
A virtual image formed by a plane mirror is erect and laterally inverted.
Answer:
True

Question 3.
A concave mirror is also known as a converging mirror.
Answer:
True

Question 4.
Mirrors help in the refraction of light.
Answer:
False

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