Question

B. Fill in the blanks:
1. The ray of light which strikes a reflecting surface is called ____.
2. The ray of light returned by the reflecting surface to the same medium is called____.
3. The perpendicular drawn at the point of incidence is called______.
4. Mirror of ___cooker is used to reflect sun light on the food.
5. Plane mirror can be used by a driver to see___view.​

Answer 1

AnswEr:

1) The ray of light which strikes a reflecting surface is called ${\underline{\sf{\red{Incident\;ray}}}}.$

2) The ray of light returned by the reflecting surface to the same medium is called ${\underline{\sf{\purple{Reflected\;ray}}}}.$

3) The perpendicular drawn at the point of incidence is called ${\underline{\sf{\blue{Normal}}}}.$

4) Mirror of ${\underline{\sf{\pink{Solar}}}}$ cooker is used to reflect sun light on the food.

5) Plane mirror can be used by a driver to see ${\underline{\sf{\green{side}}}}$ view.

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$\star\;{\underline{\underline{\sf{\orange{Additional\; Information:}}}}}$

• Incident ray : The ray of light that strikes the reflecting surface is known as incident ray. The angle between incident ray and the normal is known as angle of incidence.

• Reflected ray : The ray of light that bounces back the surface of reflection is know as Reflected ray. The angle between reflected ray and the normal is known as angle of incidence.

• Normal : The ray of light that incident the surface at 90° or a ray which is perpendicular to the surface is known as Normal.

• Angle of incidence is denoted by $\sf ( \angle\; i)$

• Angle of reflection is denoted by $\sf ( \angle\; r)$

⠀★ Laws of reflection:

⠀⠀(I) Incident ray, reflected ray and the normal to the reflection surface all lies in ⠀ ⠀⠀ same plane.

⠀⠀(ii) The angle of incidence is equal to the angle of reflection.

Answer 2

Answer:

Good question

Explanation:

1.Incident ray

2.Reflected ray

3.Normal ray

4.Solar

5. Sider