EASY
10th West Bengal Board
IMPORTANT
Earn 100

Draw reflected rays for the incident rays parallel to the principal axis of a convex lens. Mark focus of the lens.

Important Questions on Light

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 11
The radiation used for sterilising purposes-
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 12
In red light, a green leaf appears-
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 6
What is meant by the term refractive index of a medium?
HARD
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 1
How would you establish the relationship between focal length and radius of curvature of a concave mirror?
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 2
Give an account of virtual images formed by plane, convex and concave mirrors.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 3
How a convex lens can be used as a magnifying lens? Explain with a ray diagram.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 4
How refractive index is related to speed and wavelength of light?
MEDIUM
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 5
Derive an expression for prism angle and angle of deviation.