

MCQOPTIONS
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1. |
Assertion : The focal length of lens does not change when red light is replaced by blue light. Reason : The focal length of lens does not depends on colour of light used. |
A. | If both assertion and reason are true and the reason is the correct explanation of the assertion. |
B. | If both assertion and reason are true but reason is not the correct explanation of the assertion. |
C. | \[\frac{50}{3}cm\] |
D. | If the assertion and reason both are false. |
E. | If assertion is false but reason is true. |
Answer» E. If assertion is false but reason is true. | |