An LED is constructed from a p-n junction based on a certain semi-conducting

An LED is constructed from a p-n junction based on a certain semi-conducting material whose energy gap is 1.9 eV. Then, the wavelength of the emitted light is

Options

(a) 6.5×10⁻⁷ m
(b) 2.9×10⁻⁹ m
(c) 9.1×10⁻⁵ m
(d) 1.6×10⁻⁸ m

Correct Answer:

6.5×10⁻⁷ m

Explanation:

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

admin:

Related Questions

  1. The moment of inertia of a uniform circular disc of radius R and mass M about an axis
  2. 1 Wb/m² equal to
  3. A machine gun fires 10 bullets/s,each of mass 10 g,the speed of each bullet
  4. Time taken by light to cross a glass slab of thickness 4 mm and refractive index 3 is
  5. In India, electricity is supplied for domestic use at 200V. It is supplied at 110 V