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Question 80Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 1

The duration of phosphorescence exhibited by a phosphor is known as ________.

  1. APhosphorescence
  2. BFluorescence
  3. CPersistence
  4. DDeflection
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Correct answer: (C) Persistence

Explanation

Persistence is how long a phosphor continues to emit light after the electron beam is removed (time for light to decay to one-tenth of its original intensity).

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1

This is question 80 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 1. 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.