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CBSE Class 8  >  Class 8 Test  >  Science   >  Important Questions Test: Light - Class 8 MCQ

Light - Free MCQ Test with solutions, Class 8 Science


MCQ Practice Test & Solutions: Important Questions Test: Light (10 Questions)

You can prepare effectively for Class 8 Science Class 8 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Important Questions Test: Light ". These 10 questions have been designed by the experts with the latest curriculum of Class 8 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 15 minutes
  • - Number of Questions: 10

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Important Questions Test: Light - Question 1
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What is the main cause of diffused reflection?

Detailed Solution: Question 1

  • Diffused reflection occurs when light strikes a rough surface.
  • In this case, the light rays are reflected in many different directions rather than a single direction, which happens in regular reflection from a smooth surface.
  • Examples: white paper, walls, cloth.

Why others are incorrect:

a) Smooth surface → causes regular (specular) reflection, not diffused reflection.

c) Transparent surface → allows light to pass through, not reflect.

d) Translucent surface → scatters light, but the main cause of diffused reflection is a rough opaque surface, not translucency.

Important Questions Test: Light - Question 2
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What is lateral inversion?

Detailed Solution: Question 2

When an object is placed in front of a plane mirror, the left side of the object appears on the right side in the mirror image and the right side appears on the left. This interchange of sides in a mirror image is known as lateral inversion.

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Important Questions Test: Light - Question 3
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What is the blind spot in the human eye?

Detailed Solution: Question 3

The blind spot in the human eye is the area on the retina where there are no rods and cones, hence no image detection occurs there.

Important Questions Test: Light - Question 4
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What tool can visually impaired individuals use to read and write?

Detailed Solution: Question 4

The Braille system is a tool that visually impaired individuals use to read and write. It consists of patterns of raised dots that can be felt with the fingers.

Important Questions Test: Light - Question 5
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What is the phenomenon where light rays are reflected multiple times between mirrors called?

Detailed Solution: Question 5

Multiple reflections occur when light rays are reflected several times between mirrors, as seen in a kaleidoscope.

Important Questions Test: Light - Question 6
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What happens to light when it strikes a shiny surface like a mirror?

Detailed Solution: Question 6

When light strikes a shiny surface like a mirror, it gets reflected. The direction of this reflection follows the law of reflection, where the angle of incidence is equal to the angle of reflection.

Important Questions Test: Light - Question 7
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Which part of the eye focuses light onto the retina?

Detailed Solution: Question 7

The lens of the eye focuses light onto the retina, allowing us to see a clear image.

Important Questions Test: Light - Question 8
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What is the function of the pupil in the human eye?

Detailed Solution: Question 8

  • The pupil is the opening in the center of the iris, which is the colored part of the eye.
  • Its primary function is to control the amount of light that enters the eye.
  • In bright conditions, the pupil contracts to limit light intake, protecting the retina.
  • In dim conditions, it expands to allow more light, enhancing vision.
  • This automatic adjustment helps maintain optimal vision in varying light environments.

Important Questions Test: Light - Question 9
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What phenomenon causes a rainbow to form in the sky?

Detailed Solution: Question 9

A rainbow is formed due to the dispersion of light, which occurs when light is split into its constituent colors. This happens when sunlight passes through water droplets in the atmosphere.

Important Questions Test: Light - Question 10
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The image formed by plane mirror is

Detailed Solution: Question 10

Plane mirrors are the only type of mirror for which a real object always produces an image that is virtual, errect and of the same size as the object.

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About this Class 8 Practice Test

This test contains 10 MCQs on Important Questions Test: Light with detailed solutions for each question. It is part of the Science Class 8 course on EduRev, designed to align with the current Class 8 syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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If you found this Important Questions Test: Light MCQ Test helpful, you can further enhance your Class 8 preparation with in-depth courses on EduRev, for all the subjects and topics available in Science Class 8 course. The course offers:
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