The energy of a photon in a monochromatic light of wavelength
matches with the band gap of a semiconducting material. Then the minimum energy required to create an electron-hole pair from the semiconductor is [Take hc
, where
is Planck's constant and
is speed of light in vacuum]
Text Solution
Verified by ExpertsThe correct answer is:
C
Minimum energy required 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The photo current in a photo diode depends on
A reverse biased Zener diode when operated in the breakdown region works as
The hole and the free electron concentrations in a pure silicon at room temperature are given by e…
The device that can detect optical signals is
When the temperature of a semiconductor increases then
The material used in the fabrication of infrared LED's is