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:

C) A is True but R is false

Thank you -

Answer 2

Answer:

The correct option is option c here.

Explanation:

Here in the assertion, we have been given that a light ray passing along the principal axis is un deviated. This is incorrect as only the line that passes through the optical center of the lens passes un deviated. The line along the principal axis after reflection in case of mirrors and refraction in the case of lens passes through the focus. Hence assertion here is incorrect.

Therefore A or the assertion here is false.

For the reason(R), we have been mentioned that the light ray that is passing through the focus is un deviated. This is incorrect. As we know that only the ray which passes through the optical center of the lens passes un deviated. Therefore reason here is false.

The correct option is an option b) A and R is false.