| ⇦ | 
| ⇨ |
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 current I flows along the length of an infinitely long, straight, thin walled pipe.
- The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C.
- An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
- The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A current I flows along the length of an infinitely long, straight, thin walled pipe.
- The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C.
- An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
- The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
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