Navigate

When a metallic surface is illuminated with radiation of wavelength λ,

When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminating with radiation of wavelength 2λ, the stopping potential is V/4. The threshold wavelength for the metallic surface is

Options

(a) 5λ
(b) 5/2 λ
(c) 3λ
(d) 4λ

Correct Answer:

3λ

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

NEET2016
admin:

Related Questions

  1. An electromagnetic wave of frequency v = 3.0 MHz passes from vacuum into
  2. For non-conductors, the energy gap is
  3. An ac voltage is applied to a resistance R and an inductor L in series
  4. The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
  5. A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed