EASY
9th Tamil Nadu Board
IMPORTANT
Earn 100

The mirror used in search light is a (convex/ concave) mirror.

45.45% studentsanswered this correctly

Important Questions on Light

MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q iii
The angle of deviation of light ray in a prism depends on the angle of prism and angle of _____.
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q iii
The radius of curvature of a concave mirror whose focal length is 5 cm is _____ cm.
EASY
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q iii
Large _____ mirrors are used to concentrate sunlight to produce heat in solar furnaces.
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q vi
According to Cartesian sign convention, which mirror and which lens has negative focal length?
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q vi
If an object is placed at the focus of a concave mirror, where is the image formed?
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q vi
Why does a ray of light bend when it travels from one medium to another?
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q vi
What is the speed of light in vacuum?
MEDIUM
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 6 - Light>textbook exercises>Q vi
Concave mirrors are used by dentists to examine teeth. Why?