The intensity of gamma radiation from a given source is L. 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 [AIEEE 2005]

AIEEE 2005 Physics Solved Paper

Section: Physics

Question : 68 of 74

Marks: +1, -0

The intensity of gamma radiation from a given source is L. On passing through 36‌mm of lead, it is reduced to ‌

. The thickness of lead which will reduce the intensity to ‌

will be

[AIEEE 2005]

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