In Young's two-slit experiment, a beam of light from a slit ...

[B]

In Young's two-slit experiment, a beam of light from a slit reaches at a point on the screen one wavelength behind the wave from the other slit. What is observed on the screen at that point?
 
  A) Dark fringe
  B) An empty space
  C) Bright-dark fringe
  D) Dark-bright fringe
  E) Bright fringe

Question 2

Which one of the following mathematical expressions is correct for destructive interference for two beams of light in the double slit experiment?
 
  A) Path Difference = (m - 1/2 ) , m = 0, 1, 2, . . .
  B) Path Difference = /m, m = 0, 1, 2, . . .
  C) Path Difference = m, m = 0, 1, 2, . . .
  D) Path Difference = m2, m = 0, 1, 2, . . .
  E) Path Difference = m/, m = 0, 1, 2, . . .

[jamesnevil303]

Answer to Question 1

E

Answer to Question 2

A