Navigate

Sodium and copper have work function 2.3 eV and 4.5 eV respectively

Sodium and copper have work function 2.3 eV and 4.5 eV respectively. The ratio of their threshold wavelengths is nearest to

Options

(a) 1 : 2
(b) 4 : 1
(c) 2 : 1
(d) 1 : 4

Correct Answer:

2 : 1

Explanation:

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

AIEEE2002
admin:

Related Questions

  1. Minority carriers in a p-type semiconductor are
  2. In the Davisson and Germer experiment, the velocity of electrons emitted from the
  3. The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
  4. The binding energy of deutron is 2.2 MeV and that of ₂⁴He is 28 MeV.
  5. The barrier potential of a p-n junction depends on