Question

L. Answer the following
1. Garve one reason to prove that light is a form of ener
What is the diference between regular and irregular relections
State the laws of reflection
Mention the use of concave mirrors
5. Why is convex mirror used as rear view mirror in motor vehicles
6. Mention any two effects of refraction of light in daily life
7. What are the conditions for total internal reflection to take place
8 Write dintrams to show the refraction of parallel rays of light in
convex lens and ) concave lens.
9. Mention any four devices that contain convex lens.
10. What is dispersion of light?
IV. Match the flowing
a. plane mirror​

Answer 1

Answer:

Q 4 and Q 10

Explanation:

The laws of reflection are:

• The incident ray, the reflected ray and the normal ( at the point of incidence) all lie in the same line.
• The angle of reflection is equal to the angle of incidence.

Q 10.

The splitting of white colour into seven colours on passing through a transparent medium like a glass prism is called dispersion of light.

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