Which of the following is wrong for interference fringes? - Vidyadip

MCQ

Which of the following is wrong for interference fringes?

✓
Fringes are due to limited portion of wave front.
B
All bright fringes are equally bright.
C
Distance between two consecutive fringes is constant.
D
Fringes are due to the use of coherent sources.

✓

Answer

Correct option: A.

Fringes are due to limited portion of wave front.

Statements $B,C$ and $D$ are correct whereas the statement "Fringes are due to limited portion of the wave front" is incorrect.
Interference fringes are formed due to the whole portion of wave front.

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