X-ray Penetration Power and Uses – Rankers Physics

Atomic Structure: Practice Problem & Solution

Assertion (A): Penetration power of hard X-ray is more than that of soft X-ray. Reason (R): Hard X-ray is used for engineering purpose while soft X-ray is used for medical purpose.  
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 Atomic Structure. Understanding the underlying formula is key to arriving at the correct answer below:

Hard X-rays have shorter wavelengths and higher energy, leading to greater penetration power than soft X-rays. While both the assertion and reason are factually correct regarding X-ray properties and applications, the reason describes their uses, not the physical explanation for their differing penetration power.

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Your email address will not be published.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. In a discharge tube ionization of enclosed gas is produced due to collisions between: (2006)
2. When an electron do transition from $n = 4$ to $n = 2$, then emitted line in spectrum will be: (2000)
3. An electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum. Its final velocity will be (1996)
4. Assertion (A): All protons have non zero magnetic moment. Reason (R): All nuclei have non zero magnetic moment.  
5. When the light of frequency $2\nu_0$ (where $\nu_0$ is threshold frequency), is incident on a metal plate, the maximum velocity of electrons emitted is $v_1$. When the frequency of the incident radiation is increased to $5\nu_0$, the maximum velocity of electrons emitted from the same plate is $v_2$. The ratio of $v_1$ to $v_2$ is: (2018)