Question : Assertion Reasoning (A/R) Questions
Select the correct answer to these questions from the codes : (a), (b), (c) & (d)
a) Both Assertion (A) and Reason (R) are true and reason (R) is the correct explanation of A.
b) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
c) Assertion (A) is true but Reason (R) is false.
d) Assertion (A) is false and Reason (R) is also false.
Assertion (A) : Fringe of interference pattern produced by blue light is narrower than produced by red light.
Reason (R) : In YDSE, fringe width = λD/d
Doubt by Angad
Solution :
We know,
λB<λR
So as per the relation, β=λD/d
λB<λR
So as per the relation, β=λD/d
β∝λ
∵ λB<λR
∴ βB<βR
Hence, the correct answer is a) 'Both Assertion (A) and Reason (R) are true and reason (R) is the correct explanation of A.'
