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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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The power supplied by a force acting on a particle moving in a straight line
- A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
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- The resistance of a carbon resistor of colour code Red-Red Green Silver is(in kΩ)
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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