| ⇦ | 
| ⇨ |
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:
- Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm
- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
- A vibrating string of certain length l under a tension T resonates with a mode
- An inductor coil is connected to a 12 V battery and drawing a current 24 A. This coil
- In which of the following systems will the radius of the first orbit (n=1) be minimum?
Topics: Dual Nature of Matter and Radiation
(150)
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