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. A particle doing SHM has amplitude=4 cm and time period = 12 sec. The ratio between times
  2. The equiconvex lens has focal length f. If it is cut perpendicular to the principal
  3. A long horizontal rod has a bead which can slide long its length
  4. A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat
  5. A solid sphere, a hollow sphere and a ring are released from top of an inclined