Question

Statement-1: Davisson-Germer experiment established the wave nature of electron
Statement-2: If electrons have wave nature, they can interfere show differaction.
A. Statement `1` is false, Statement `2` is true
B. Statement `1` is true, Statement `2` is false
C. Statement `1` is true, Statement is the correct explanation for statement `1`
D. Statement `1` us true, Statement `2` is true, Statement `2` is not the correct explanation for statement `1`.

Answer 1

Correct Answer - A
`k_(1)x_(1)=k_(2)x_(2) =F`
`W_(1)=(1)/(2) k_(1)x_(1)^(2) =((k_(1)x_(1))^(2))/(2k_(1)) = (F_(2))/(2k_(1))`
Similarly, `W_(2)=(F^(2))/(2k_(1)) rArr W prop (1)/(K)`
`W_(1) gt W_(2) rArr k_(1) lt k_(2)`
Statement II is true.
Now, `W_(1) = (1)/(2) K_(1) X^(2)`
`W_(2) = (1)/(2) K_(2) X^(2)`
So, `W_(2) gt W_(1)`, Hence, statement `I` is false.