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Question 165Asked in DSSSB TGT Computer Science, 25 Jun 2023, Shift 1 (8:30 AM)

Which of the following effects is the phenomenon of emission of electrons from the surfaces of certain substances, mainly metals, when light of a shorter…

Which of the following effects is the phenomenon of emission of electrons from the surfaces of certain substances, mainly metals, when light of a shorter wavelength is incident upon them?
  1. APhoto-light
  2. BPhoto-mechanic
  3. CPhoto-electric
  4. DPhoto-magnetic
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Correct answer: (C) Photo-electric

Explanation

The photoelectric effect is the emission of electrons from a metal surface when light of short enough wavelength (high enough frequency) falls on it.

From DSSSB TGT Computer Science PYQ, 25 Jun 2023, Shift 1 (8:30 AM)

This is question 165 of DSSSB TGT Computer Science PYQ, 25 Jun 2023, Shift 1 (8:30 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.