Force on Strip in YDSE!
Classical Mechanics
Level
4
A very small completely absorbing strip is placed at distance '\(y\)' from the point \(C\).
'\(C\)' is the point on the screen equidistant from \(S_1\) and \(S_2\).
Assume (\(\lambda << d << D\)) where \(\lambda, d\) and \(D\) have usual meaning.
When \(S_2\) is covered, the force due to light acting on strip is '\(F\)' and when both slits are opened the force acting on strip is \(2F\). Minimum positive '\(y\)' (\(<<D\)) coordinate of the strip in terms of \(\lambda, d\) and \(D\) is \(\frac{\lambda D}{2md}\).
What is the value of \(m\)?
by
Nishant Rai