Home/
Competitive Exams/
JEE Main & Advanced/
Chemistry/
Atomic Structure/
Question 600235
JEE Chemistry · Hard

Atomic Structure: Frequency of radiation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Frequency of radiationHardQuestion 600235

Question

The frequency of radiation absorbed when H electron moves from n=1 to n=3 is (R=3.29×10¹⁵ Hz):
  1. A
    2.93×10¹⁵ Hz
    Correct
  2. B
    2.46×10¹⁵ Hz
  3. C
    3.29×10¹⁵ Hz
  4. D
    1.46×10¹⁵ Hz

Correct answer

2.93×10¹⁵ Hz

Explanation

ν = cR(1/1 − 1/9) = R×(8/9) = 3.29×10¹⁵ × 8/9 ≈ 2.93×10¹⁵ Hz.

Review Atomic Structure notesStart timed chapter practice