JEE PHYSICS MCQ: WAVE OPTICS

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Understanding +4 | -1

Consider the following statements in case of Young’s double slit experiment.
I. A slit S is necessary if we use an ordinary extended source of light.
II. A slit S is not needed if we use an ordinary but well collimated beam of light.
III. A slit S is not needed if we use a spetially coherent source of light.
Which of the above statement are correct?

View answer and explanation

Correct option: D

(i), (ii) and (iii)

Option D is correct because all three statements are correct regarding the necessity of a slit in Young's double-slit experiment depending on the light source.

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