Question

A metal whose work function is 3.0 eV, is illuminated
by light of wavelength 3 x 10 m. Calculate (i) the
threshold frequency, (ii) the maximum energy of
photoelectrons and (ii) the stopping potential.​

Answer 1

Answer:

wave of light having frequency 4 * 104 Hz and

speed of light 3 * 108 m/s enters glass of R.I. 1.5.

Change in wavelength is