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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: - Curie temperature above which
- Unit of electrical conductivity is
- The temperature coefficient of resistance of an alloy used for making resistor is
- The position vector of a particle R as a function of time is given by
- A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Curie temperature above which
- Unit of electrical conductivity is
- The temperature coefficient of resistance of an alloy used for making resistor is
- The position vector of a particle R as a function of time is given by
- A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal
Topics: Atoms and Nuclei (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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