| ⇦ | 
| ⇨ |
The power obtained in a reactor using U²³⁵ disintegration is 1000 kW. The mass decay of U²³⁵ per hour is
Options
(a) 10 microgram
(b) 20 microgram
(c) 40 microgram
(d) 1 microgram
Correct Answer:
40 microgram
Explanation:
E = mc² m = E / c² so, mass decay per second.
dm/ dt = 1/c² . dE/ dt = 1/c² (Power in watt)
= 1 / (3 x 10⁸)² x 1000 x 10³
and mass decay per hour = dm/ dt x 60 x 60
= 1 / (3 x 10⁸)² x 10⁶ x 3600 = 4 x 10⁻⁸ kg = 40 microgram
Related Questions: - The maximum velocity of a particle, executing simple harmonic motion with an amplitude
- The ratio of speed of an electron in ground state in Bohr’s first orbit of hydrogen atom
- An insulated container of gas has two champers seperated by an insulating partition.
- A double slit experiment is performed with light of wavelength 500 nm. A thin film
- A thin rod of length L and mass M is held vertically with one end on the floor
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The maximum velocity of a particle, executing simple harmonic motion with an amplitude
- The ratio of speed of an electron in ground state in Bohr’s first orbit of hydrogen atom
- An insulated container of gas has two champers seperated by an insulating partition.
- A double slit experiment is performed with light of wavelength 500 nm. A thin film
- A thin rod of length L and mass M is held vertically with one end on the floor
Topics: Atoms and Nuclei (136)
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