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Two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
- Both A and R are true and R is the correct explanation of A
- Both A and R are true and R is NOT the correct explanation of A
- A is true but R is false
- A is false and R is also false
ASSERTION:
In an interference pattern observed in Young's double slit experiment, if the separation (d) between coherent sources as well as the distance (D) of the screen from the coherent sources both are reduced to 1/3rd, then new fringe width remains the same.
REASON:
Fringe width is proportional to (d/D).
Answer:
c) A is true but R is false
