Question

Consider the following statements in case of Young’s double slit experiment.

(1) A site S is necessary if we use an ordinary extended source of light.

(2) A slit S is not needed if we use an ordinary but well collimated beam of light.

(3) A slit S is not needed if we use a spatially coherent source of light.

Which of the above statement are correct?

• A. (1), (2) and (3)
• B. (1) and (2) only
• C. (2) and (3) only
• D. (1) and (3) only

Answer 1

Answer: (A)

(1), (2) and (3)

Answer 2

: (1) (2) or (3)