Electromagnetic Waves

Question: The intensity of gamma radiation from a given source is I. On passing through 36 mm of lead, it is reduced to $\frac{I}{8}$. The thickness of lead which will reduce the intensity to $\frac{I}{2}$ will be



1) 18 mm
2) 12 mm
3) 6 mm
4) 9 mm
Solution: Explanation: No Explanation
E-M Waves Wave Optics

Rate this question:

Average rating: (0 votes)

Previous Question Next Question