A and B are two metals with threshold frequencies 1.8 x 10¹⁴ Hz and 2.2 x 10¹⁴ Hz.

A and B are two metals with threshold frequencies 1.8 x 10¹⁴ Hz and 2.2 x 10¹⁴ Hz. Two identical photons of energy 0.825 eV each are incident on them. Then photoelectrons are emitted in (Take h=6.6 x 10³⁴ Js)

Options

(a) B alone
(b) A alone
(c) neither A nor B
(d) both A and B

Correct Answer:

A alone

Explanation:

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

admin:

Related Questions

  1. Two concentric spheres kept in air have radii R and r.
  2. In the equation y=asin(?t+kx),the dimensionals formula of ? is
  3. A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection
  4. Two lenses of power 15 D and -3 D are placed in contact.
  5. If |A x B|= √3 A.B , then the value of |A + B| is