Question Detail

PHY 102 PHY 102 Past Questions Objective Question
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Question

Evaluate the wavelength of the photon emitted as an electron falls from the 7th orbit in the Pfund series.
Options
A 7.1 x 10-12 m
B 1.21 x 10-7 m
C 4.65 x 10-6 m
Correct Answer
D 2.14 x 10-8 m
Correct Answer

Option C is the correct answer.

Detailed Explanation

Pfund series ends at nf=5. 1/lambda=R(1/25-1/49)=2.15e5. lambda=4.65e-6m.

Hint

Pfund series ends at nf=5.

Question Info

Course: PHY 102
Topic: PHY 102 Past Questions
Type: Objective
Difficulty: Not specified
Question 1620 of 1820
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