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Saturday, 31 October

JEE Main 2023 · PhysicsMultiple choiceOtherEasyConceptual

JEE Main 8 April 2023, Shift 2, Physics Q45

Question 45 of 90 in this shift, Physics question 15 of 30, Section A.

In photo electric effect A. The photocurrent is proportional to the intensity of the incident radiation. B. Maximum Kinetic energy with which photoelectrons are emitted depends on the intensity of incident light. C. Max. K.E with which photoelectrons are emitted depends on the frequency of incident light. D. The emission of photoelectrons require a minimum threshold intensity of incident radiation. E. Max. K.E of the photoelectrons is independent of the frequency of the incident light. Choose the correct answer from the options given below:
  1. (1)A and B only
  2. (2)B and C only
  3. (3)A and C onlyOfficial answer
  4. (4)A and E only

Official answer

Option 3

NTA final key.

Chapter
Dual Nature of Radiation and Matter
Topic
Photoelectric Effect
Idea tested
Intensity vs Frequency Effects

Same idea in other shifts

Asked 3× in all
  1. 4 Apr 2024, Shift 1 · Q46Which figure shows the correct variation of applied potential difference (V) with photoelectric current (I) at two different intensities…EasyDiagram basedHas a figure
  2. 27 Aug 2021, Shift 1 · Q18In a photoelectric experiment, increasing the intensity of incident light :EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.