JEE Chemistry

Electromagnetic Radiation & Photoelectric Effect: JEE Questions & Solutions

9 previous-year JEE Chemistry questions on Electromagnetic Radiation & Photoelectric Effect, each with a worked step-by-step solution.

Intermediate

Previous-year questions

  1. 01The work functions of two metals (M_A and M_B) are in the 1: 2 ratio. When these metals are exposed to photons of energy 6 eV, the kinetic…MCQMediumJEE 2026
  2. 02Identify the INCORRECT statements from the following: A. Notation ²⁴₁₂Mg represents 24 protons and 12 neutrons. B. Wavelength of a…MCQMediumJEE 2026
  3. 03The wavelength of photon 'A' is 400 nm. The frequency of photon 'B' is 10¹⁶ s⁻¹. The wave number of photon 'C' is 10⁴ cm⁻¹. The correct…MCQMediumJEE 2026
  4. 04Which of the following statements are correct, if the threshold frequency of caesium is 5.16 × 10¹⁴ Hz? A. When Cs is placed inside a…MCQMediumJEE 2025
  5. 05The ionization energy of sodium in kJ/mol. If electromagnetic radiation of wavelength 242 nm is just sufficient to ionize sodium atom, what…MCQEasyJEE 2024
  6. 06The energy of one mole of photons of radiation of frequency 2 × 10¹² Hz in J mol⁻¹ is. (Nearest integer) Given: h = 6.626 × 10⁻³⁴ Js, N_A =…NVAEasyJEE 2023
  7. 07The number of incorrect statement(s) about the black body from the following is: (1) Emits or absorbs energy in the form of electromagnetic…NVAEasyJEE 2023
  8. 08Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In the photoelectric…MCQEasyJEE 2023
  9. 09Values of work function (W₀) for a few metals are given below. | Metal | Li | Na | K | Mg | Cu | Ag | |---|---|---|---|---|---|---| | W₀ /…NVAEasyJEE 2023

Frequently asked questions

Our bank has 9 previous-year JEE Chemistry questions tagged to Electromagnetic Radiation & Photoelectric Effect, drawn from JEE papers between 2023 and 2026, including 3 from 2026 alone. Each comes with a full step-by-step solution.

Electromagnetic Radiation & Photoelectric Effect is rated Intermediate overall for JEE Chemistry. The PYQs on this page break down as 5 easy, 4 medium.

Of the 9 previous-year questions on Electromagnetic Radiation & Photoelectric Effect, 6 are multiple-choice (MCQ) and 3 are numerical-value (NVA) questions.

Based on recent paper analysis, Electromagnetic Radiation & Photoelectric Effect is worth about 1 mark in JEE Main. It sits in Atomic Structure, a Class 11 Chemistry chapter.

More Atomic Structure topics

Bohr Model & Hydrogen Spectrum25Electronic Configuration12Quantum Numbers10Orbitals & Shapes6Dual Nature of Matter & de Broglie Relation4Heisenberg Uncertainty Principle2

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