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The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
Options
(a) λₚ ∞ λₑ
(b) λₚ ∞ √λₑ
(c) λₚ ∞ 1/√λₑ
(d) λₚ ∞ λₑ²
Correct Answer:
λₚ ∞ λₑ²
Explanation:
As P = E/C
λₚ = hC / E …(i)
λₑ² = hh / √ 2mE …(ii)
From equations (i) and (ii)
λₚ ∞ λₑ²
Related Questions: - A charge of 40 µC is given to a capacitor having capacitance C=10 µF
- Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations
- The potential of a large liquid drop when eight liquid drops are combined is 20 V.
- A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A charge of 40 µC is given to a capacitor having capacitance C=10 µF
- Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations
- The potential of a large liquid drop when eight liquid drops are combined is 20 V.
- A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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