MCQ
The potential difference between the cathode and the target in a Collidge tube is 100 kV. The minimum wavelength of the X-rays emitted by the tube is
- A0.66 Å
- B9.38 Å
- C0.246 Å
- ✓0.123 Å
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Reason : The $emf$ of a dry cell is proportional to its size