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The wavelength of first line of Balmer series is 6563Å. The wavelength of first line of Lyman series will be
Options
(a) 1215.4Å
(b) 2500Å
(c) 7500Å
(d) 600Å
Correct Answer:
1215.4Å
Explanation:
λ(ʟyman) / λ(вalmer) = [(1/2²) – (1/3²)] / [(1/1²) – (1/2)²] = 5 / 27
λ(ʟyman) = (5 / 27) × λ(вalmer) = (5 / 27) × 6563 = 1215.4 Å
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Topics: Atoms and Nuclei
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A generator at a utility company produces 100 A of current at 4000 V. The voltage
- A uniform force of (3i+j) Nacts on a particle of mass 2 kg.Hence the particle is displaced
- A string is stretched between fixed points seperated by 75 cm. It is observed
- What is the difference between soft and hard X-ray?
- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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