Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about wave optics is correct?
A
A path difference of 2.5λ results in a point of destructive interference.
B
A bright fringe occurs where the path difference is an integer multiple of λ.
C
All waves in a medium propagate at the same speed irrespective of their nature.
D
A plane wave always maintains its amplitude regardless of the medium it travels through.
Correct Answer
Option B
Detailed Explanation
A bright fringe occurs where the path difference is equal to an integer multiple of λ, which is consistent with the principles of constructive interference. This is not mentioned for a path difference of 2.5λ in the context provided.
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