| ⇦ | 
| ⇨ |
The ratio of longest wavelength corresponding to Lyman and Blamer series in hydrogen spectrum is
Options
(a) 3 / 23
(b) 7 / 29
(c) 9 / 13
(d) 5 / 27
Correct Answer:
5 / 27
Explanation:
For Lyman series (2 → 1)
1/λL = R [1 – 1/2] = 3R/4
For Balmer series (3 → 2)
1/λB = R [1/4 – 1/9] = 5R/36
λL / λB = 4/3R / 36/5R = 4/36 (5/3) = 5/27
Related Questions: - Which of the following measurement is most precise?
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- In an AC generator, a coil with N turns, all of the same area A and total resistance R,
- A body of mass m is accelerated uniformly from rest to a speed v in a time T
- An electron having charge e and mass m is moving in a uniform electric field E.
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following measurement is most precise?
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- In an AC generator, a coil with N turns, all of the same area A and total resistance R,
- A body of mass m is accelerated uniformly from rest to a speed v in a time T
- An electron having charge e and mass m is moving in a uniform electric field E.
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply