Question

Assertion(A): Light ray passing along the principal axis is un deviated

Reason(R): Light ray passing through the focus is un deviated.

Which of the following is correct?

A) A and R are true

B) A and R are false

C) A is true but R is false

D) A is false but R is true​

Answer 1

Answer:

Assertion(A): Light ray passing along the principal axis is un deviated

Reason(R): Light ray passing through the focus is un deviated.

A and R are false

Explanation:

• A ray of light passing through the optical center of the lens, passes on undeviated. The optical center is the center of the lens.
• Any light ray striking the optical centre can be seen as striking the centre of a circle that includes the lens. As a result, we can claim that this light ray strikes the lens normally. We now know that any typical occurrence is unaffected by the medium. As a result, after refraction, a light ray incident on the optical centre passes through it undeviated.

So, Assertion (A) and Reason (R) are false.

Answer 2

Answer:

answer is b this ma help you in exam