Question
Medium
Solving time: 3 mins
The wavelength for to transition of the hydrogen atom is . What are the wavelengths for this same transition in (a) positronium, which consists of an electron and a positron (b) singly ionized helium (Note: A positron is a positively charged electron).
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Text solutionVerified
(a) Reduced mass of positronium and electron is , where, mass of electron
has become half, so will become two times or or .
(b)
For singly ionized helium atom is th or
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Question Text | The wavelength for to transition of the hydrogen atom is . What are the wavelengths for this same transition in (a) positronium, which consists of an electron and a positron (b) singly ionized helium (Note: A positron is a positively charged electron). |
Topic | Atoms |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 110 |