YDSE- LEC 14- OPTICS

A beam of electron is used YDSE experiment . The slit width is d when the velocity of electron is increased ,then

YDSE set up shown in figure.

Statement-1: In YDSE central maxima means the maxima formed with zero optical path difference. It may be formed anywhere on the screen. Statement-2: In an interference pattern, whatever energy disappears at the minimum, appear at the maximum.

In YDSE, water is filled in the space between the slits and screen. Then

In a YDSE, the central beight fringe can be indentified:

In YDSE ratio of width of slit is 4:1 , then ratio of maximum to minimum intensity

In YDSE ratio of width of slit is 4:1 , then ratio of maximum to minimum intensity

The YDSE apparatus is as shown in figure. The condition for point P to be a dark fringe is

In YDSE, d=5lambda , then the total no. of maxima observed upon screen will be

If intensity in YDSE is 50% of maximum at a point. Calculate the path difference.