i m getting tan(αmax )= M√m2 - M2
but u hav given M > m ?
i m getting tan(αmax )= M√m2 - M2
i.e sin(αmax ) = Mm , but here M > m [7]
[12] r u sure ? ( i solved it twice, got same ans )
btw if jee topper's ans is right then , for M = 0 , i.e no stationary mass in m's path , then deviation shud be = 0 , whereas by jeetopper's ans it comes out to be undefined ??? [7]
sorry for confusion guys ...
qwerty's answer is right ....
M<m ..is its >M then max angle is 180degrees it will rebound