The photoelectric threshold wevelength for potassium (work function being 2 eV) is

The photoelectric threshold wevelength for potassium (work function being 2 eV) is

Options

(a) 620 nm
(b) 310 nm
(c) 1200 nm
(d) 2100 nm

Correct Answer:

620 nm

Explanation:

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

admin:

Related Questions

  1. When the energy of the incident radiation is increased by 20%,
  2. An alternating voltage e=200s in100t is applied to a series combination
  3. An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
  4. A proton and helium nucleus are shot into a magnetic field at right angles to the field
  5. If ₉₂U²³⁸ undergoes successively 8 ∝-decays and 6 β-decays, the resulting nucleus is