Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- X-rays
Concepts Of Physics MCQ Edition [Volume 2] · Physics · X-rays
X-rays originating from a Coolidge tube have a cutoff wavelength of...
X-rays originating from a Coolidge tube have a cutoff wavelength of . Determine the kinetic energy of the electrons striking the target.
Options
- A
- B
- C
- D
Correct answer
C.
Step-by-step solution
The cutoff wavelength \lambda_{\text\min} of X-rays is related to the maximum kinetic energy of the striking electrons by the equation:
K = \dfrac{hc}{\lambda_{\text\min}}
Given \lambda_{\text\min} = 80 \text{ pm} = 0.08 \text{ nm}.
Using the standard value , we get:
K = \dfrac{hc}{\lambda_{\text\min}}
Given \lambda_{\text\min} = 80 \text{ pm} = 0.08 \text{ nm}.
Using the standard value , we get: