Reflection and Image Formation Concepts

The video tutorial explains the formation of images due to multiple reflections of light when objects are placed between two mirrors. It covers scenarios with mirrors inclined at 120°, mutually perpendicular mirrors, and parallel mirrors. The number of images formed is determined by the angle between the mirrors, with specific mathematical relations provided. The tutorial includes ray diagrams and mathematical proofs to illustrate the concepts.

What is the formula to calculate the number of images formed when two mirrors are inclined at an angle?

• n = 360 / Theta - 1

• n = 180 / Theta + 1

• n = 180 / Theta - 1

• n = 360 / Theta + 1

How many images are formed when two mirrors are inclined at 120 degrees?

• One

• Two

• Three

• Four

What happens to the ray OA when it is perpendicular to the mirror?

• It forms a new ray

• It gets refracted

• It retraces its path

• It gets absorbed

How many images are formed when two mirrors are placed mutually perpendicular to each other?

• Four

• Two

• One

• Three

What is the virtual image of the object O when mirrors are mutually perpendicular?

• O2

• O4

• O1

• O3

What is the result when two mirrors are placed parallel to each other?

• No images are formed

• One image is formed

• Two images are formed

• Infinite images are formed

What is the angle of incidence for the ray OA when it is normal to the mirror?

• 45 degrees

• 0 degrees

• 90 degrees

• 180 degrees

What happens to the ray AB when it is reflected by the mirror M-M'?

• It gets refracted

• It gets absorbed

• It retraces its path

• It forms a virtual image

How are the images I3 and I4 formed in parallel mirrors?

• By direct reflection

• By internal reflection

• By refraction

• By absorption

What is the role of the normal in the reflection process?

• It forms a new ray

• It acts as a reference for the angle of incidence

• It absorbs the ray

• It refracts the ray