Photoelectric effect occurs when ultraviolet | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The photoelectric effect occurs when the frequency of incident radiation $v$ is greater than the threshold frequency $v_0$ of the metal. Ultraviol

Vedclass · Accepted Answer

Infrared rays

Vedclass · Answer

(A) The photoelectric effect occurs when the frequency of incident radiation $v$ is greater than the threshold frequency $v_0$ of the metal. Ultraviolet $(UV)$ rays have a higher frequency than visible light and infrared rays. Infrared rays have a lower frequency than $UV$ rays,meaning $v_{IR} Since the photoelectric effect is triggered by $UV$ rays,the threshold frequency $v_0$ must be less than or equal to $v_{UV}$. Because $v_{IR} $X$-rays and $\gamma$-rays have frequencies much higher than $UV$ rays,so they will definitely cause the photoelectric effect.

Photoelectric effect occurs when ultraviolet rays are incident on a metal plate. It does not occur when which of the following are incident?

Similar Questions

$A$ photocell stops emission if it is maintained at $2V$ negative potential. The energy of the most energetic photoelectron is:

Light of frequency $1.5$ times the threshold frequency is incident on a photosensitive material. What will be the photoelectric current if the frequency is halved and intensity is doubled?

When an inert gas is filled in the place of vacuum in a photo cell,then

Describe Hallwach's and Lenard's observations regarding the photoelectric effect in short.

Assertion : Kinetic energy of photoelectrons emitted by a photosensitive surface depends upon the intensity of incident photon.
Reason : The ejection of electrons from a metallic surface is possible with a frequency of incident photon below the threshold frequency.

Vedclass Test Series

Exam Paper Generator

Online Exam Module