Question

According to Einstein’s photoelectric equation, the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is :

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

Answer 2

: The maximum kinetic energy of photoelectron ejected is given by

$K . E . = h v - \phi _ { 0 }$ $= h v - h v _ { 0 }$

Where work function depends on the type of material

If the frequency of incident radiation is greater than $v _ { 0 }$ only th4en the ejection of photoelectrons start. After that as frequency increases kinetic energy also increases