Home
Class 12
PHYSICS
Statement I : If the frequency of light ...

Statement I : If the frequency of light below a certain minimum value is made incident on a photodiode , then no current will flow through it.
Statement II : If the energy of incident photon is less than a minimum value then in a photodiode there is no possibility of recombination of electron-hole pairs.

A

Statement I is true statement II is true, statement II is a correct explanation for statement I.

B

Statement I is true statement II is true, statement II is not a correct explanation for statement I.

C

Statement I is true statement II is false.

D

Statement I is false statement II is true.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Multiple correct answers type)|7 Videos

  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Integer answer type)|5 Videos

  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise HOTS NUMERICAL PROBLEMS|3 Videos

  • REFRACTION OF LIGHT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos

Similar Questions

Explore conceptually related problems

Statement I: If the value of the output voltage of an ideal transformer is half the value of the input voltage, then the output current will become twice. Statement II: No energy is dissipated in an ideal transformer.

Statement I : Relative refractive index of a medium can be less than unity. Statement II : The angle of incidence is equal to the angle of refraction.

Statement I: In photoelectric effect the value of stopping potential is not at all dependent on the wavelength of the incident light. Statement II: The maximum kinetic energy of the emitted photoelectron and stopping potential are proportional to each other.

A metal surface does not emit any electron if the energy of incident radiation is less than the photoelectric work function of the metal - justify the statement mathematically.

Statement I: Any light wave having frequency less than 4.8 xx 10^(14)Hz cannot emit photoelectrons from a metal surface having work function 2.0 eV Statement II: If the work function of a metal is W_(0) (in eV), then the maximum wavelength (in Å ) of the light capable of initiating photoelectric effect in the metal is given by lamda_("max") = (12400)/(W_(0))

Statement I: The value of polarising angle is independent of the colour of incident light. Statement II: Polarising angle depeds on the refractive index of the medium.

Statement I: the alternating current lags behind the voltage by a phase angle pi/2 when ac flows through an inductor, Statement II: The inductive reactance increases as the frequency of ac source decreases.

Statement I: The distance of the electron from the nucleus is minimum when a hydrogen atom is in ground state. Statement II: According to Bohr's theory the radius of circular motion of an electron in n-th energy state, r_n prop n .

The energy of a photon of light (lambda=590 nm) equals the band gap of a semiconducting material.Find the minimum energy required to create a hole-electron pair.