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. The horizontal range and the maximum height of a projectile are equal
  2. A spring of spring constant 5 x 10³ Nm⁻¹ is streched intially by 5 cm from
  3. When a piece of metal is illuminated by a monochromatic light of wavelength λ,
  4. An insulated container of gas has two champers seperated by an insulating partition.
  5. The electric vector vibration of an electromagnetic wave is given by