question_answer

This question has Statement-1 and Statement-2. Of the four choices given after the Statements, choose the one that best describes the two Statements. [JEE ONLINE 22-04-2013]

Statement 1: In Young’s double slit experiment, the number of fringes observed in the filed of view is small with longer wave length of light and is large with shorter wave length of light.

Statement 2: In the double slit experiment the fringe width depends directly on the wave length of light.

A)             Statement 1 is true Statement 2 is true and the Statement 2 is not the correct explanation of the Statement 1

B)             Statement 1 is false and the Statement 2 is true

C)             Statement 1 true and statement 2 is true and the Statement 2 is true explanation of the Statement 1

D)             Statement 1 is true and the Statement 2 is false          

Correct Answer: C

Solution :

[c] Fringe width and number of fringes observed in the field of view is obtained by