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Class 8 Exam  >  Class 8 Tests  >  Science Class 8  >  Important Questions Test: Light - Class 8 MCQ

Important Questions Test: Light - Class 8 MCQ


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10 Questions MCQ Test Science Class 8 - Important Questions Test: Light

Important Questions Test: Light for Class 8 2025 is part of Science Class 8 preparation. The Important Questions Test: Light questions and answers have been prepared according to the Class 8 exam syllabus.The Important Questions Test: Light MCQs are made for Class 8 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Light below.
Solutions of Important Questions Test: Light questions in English are available as part of our Science Class 8 for Class 8 & Important Questions Test: Light solutions in Hindi for Science Class 8 course. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free. Attempt Important Questions Test: Light | 10 questions in 15 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Science Class 8 for Class 8 Exam | Download free PDF with solutions
Important Questions Test: Light - Question 1
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What is the main cause of diffused reflection?

Detailed Solution for Important Questions Test: Light - Question 1
Diffused reflection is caused by rough surfaces which scatter light in various directions.
Important Questions Test: Light - Question 2
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What happens when light rays pass from air into water?

Detailed Solution for Important Questions Test: Light - Question 2

When light rays pass from air into water, they slow down due to the change in the medium's optical density. This change in speed causes the light rays to bend towards the normal (the line perpendicular to the surface of the water) as they enter the denser medium, in a process known as refraction.

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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 for Important Questions Test: Light - 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 for Important Questions Test: Light - 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 for Important Questions Test: Light - 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 for Important Questions Test: Light - 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 for Important Questions Test: Light - 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 for Important Questions Test: Light - Question 8
The pupil controls the amount of light entering the eye by expanding or contracting.
Important Questions Test: Light - Question 9
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What phenomenon causes a rainbow to form in the sky?
Detailed Solution for Important Questions Test: Light - 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 for Important Questions Test: Light - 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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