MEDIUM
8th CBSE
IMPORTANT
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The eye can change the focal length of its lens. Which part of the eye is the responsible for this? How does the changing focal length help us?

Important Questions on Refraction and Dispersion of Light

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>ORAL QUESTIONS>Q 3
A person cannot see near objects clearly. What kind of lens should his spectacles have to correct this?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>ORAL QUESTIONS>Q 4
What is the farthest distance you can see if you have a normal eye?
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>ORAL QUESTIONS>Q 5
Braille is a language different from English and other languages. Do you agree? Give reasons.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>EXERCISES>Q A
If medium A is optically denser than medium B, then the speed of light is:
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>EXERCISES>Q A
When light travels from an optically denser medium to a rarer medium, 
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>EXERCISES>Q A
The splitting of white light into its constituent colours is called :
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>EXERCISES>Q A
At what position of the object does a convex lens act as a magnifying glass?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 16 - Refraction and Dispersion of Light>EXERCISES>Q A
Which of the following is true for a person suffering from myopia?