Question

How do you draw a normal point of incidence on spherical mirror

Answer 1

Steps to draw a normal incidence on a spherical mirror:

• First, draw the spherical mirror (convex or concave) of the required radius of curvature using a compass.

• Mark the principal focus and the centre of curvature of the spherical mirror.

• Any ray passing through the centre of curvature and incident on the mirror will be normal incidence and will trace back its path.

• This is because any line passing through the centre of a circle meets the circumference at right angles.

• Refer to the attached diagram to understand the incidence and reflection of the ray from the mirror.

Hope It Helps.

Answer 2

Answer:

you can draw a perpendicular to the point on the mirror ,it will give you the normal. Take any point on the circumference of the mirror . Draw 90• line or pependicular to it . This is its normal.

Hope it helps