| ⇦ | 
| ⇨ |
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 thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- A parallel plate air capacitor has capacity C, distance of seperation between plate
- Under the action of a force F=cx, the position of a body changes from 0 to x.The work done
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- The moment of inertia of a thin uniform rod of mass M and length L about an axis
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- A parallel plate air capacitor has capacity C, distance of seperation between plate
- Under the action of a force F=cx, the position of a body changes from 0 to x.The work done
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- The moment of inertia of a thin uniform rod of mass M and length L about an axis
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