Question

Write the Answer of the following Question.
7. What happens when light passes through a lens?
8. Name two conductors of Electricity.
9. What is the S.I unit of speed?​

Answer 1

Answer:

All the light rays after passing through the concave lens diverge and when produced backwards appear to meet at a point on the principal axis of the lens. ... Thus refracted rays appear to diverge from the focus. Concave lens is opposite to convex lens. The parallel beam of light rays is diverged after passing through it.

gold,silver,and copper

si unit of speed is m/s

Answer 2

Answer:

7) As a ray of light enters a lens , it is refracted ; and has the same of light exit the lens it is refracted again.. because of the special geometrical shapes of the lens light ray are refracted such they that form image.

8) steel, gold

9)meter per second

hope it helps you