Energy Release in Fusion vs. Fission – Rankers Physics

Nucleus: Practice Problem & Solution

Assertion (A): More energy is released in fusion than fission per nucleon. Reason (R): More number of nucleons takes part in fusion.  
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Nucleus. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is true; fusion releases significantly more energy per nucleon than fission. Reason (R) is false; fusion involves lighter nuclei (fewer nucleons) compared to fission.

The higher energy release per nucleon is due to the greater increase in binding energy per nucleon.

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. A photoelectric cell is illuminated by a point source of light 1 m away. When the source is shifted to 2 m then: (2003)
2. Assertion (A): The effective mass of (beta)-particles when they are emitted is higher than the mass of electrons obtained by Millikan oil-drop experiment. Reason (R): (beta)-particle and electron, both are similar particles.  
3. 45. Which of the following statement is correct? (1997)
4. An electron in the hydrogen atom jumps from state \(n\) to the ground state. The wavelength so emitted illuminates a photo-sensitive material having work function \(4.09\text{ eV}\). If the stopping potential of the photoelectrons is \(8\text{ V}\), the value of \(n\) is
5. An $\alpha$-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic field of $0.25 Wb/m^2$. The de Broglie wavelength associated with the particle will be: (2012 Pre)