| ⇦ | 
| ⇨ |
When the wave of hydrogen atom comes from infinity into the first orbit, the value of wave number is
Options
(a) 109700 cm⁻¹
(b) 1097 cm⁻¹
(c) 109 cm⁻¹
(d) None of these
Correct Answer:
109700 cm⁻¹
Explanation:
Wave number = 109700 cm
ῡ = 1 / λ = R[(1/n₁²) – (1/n₂²)] = (R / n₁²) Because n₂ = ∞ and n₁ = 1
ῡ = 1.097 × 10⁷ m⁻¹ = 109700 cm⁻¹
Related Questions: - A bus is moving with a speed of 10 ms⁻¹ on a straight road
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- A thermally insulated rigid container contains an ideal gas heated by a filament
- For a given velocity, a projectile has the same range R for two angles of projection.
- A boy is trying to start a fire by focusing sunlight on a piece of paper using
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bus is moving with a speed of 10 ms⁻¹ on a straight road
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- A thermally insulated rigid container contains an ideal gas heated by a filament
- For a given velocity, a projectile has the same range R for two angles of projection.
- A boy is trying to start a fire by focusing sunlight on a piece of paper using
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