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An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is
Options
(a) (E/2m)¹∕₂
(b) c(2mE)¹∕₂
(c) 1/c (2m/E)¹∕₂
(d) 1/c (E/2m)¹∕₂
Correct Answer:
1/c (E/2m)¹∕₂
Explanation:
λₑ = h / √2mE,
λp = hc / E,
E = hc / λp
λₑ / λp = (h / √2mE) (E / hc)
= 1/c √(E / 2m)
=1/c (E/2m)¹∕₂
Related Questions: - What is the dimension of impedance?
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
- Which of the following parameters does not characterize the thermodynamic state
- When an electron beam passes through an electric field they gain kinetic energy.
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the dimension of impedance?
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
- Which of the following parameters does not characterize the thermodynamic state
- When an electron beam passes through an electric field they gain kinetic energy.
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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