Home › UP Board Class 12 › Physics › Modern Physics › Becquerel's emission penetrated black paper and:
Becquerel's emission penetrated black paper and:
AStrontium
BSilver
CSulphur
DSelenium
Answer & Solution
Correct answer: B. Silver
1. A photographic plate was shielded by it.
2. The plate blackened all the same.
3. The emission passed through silver.
_Source: NCERT Class 12 Physics, Ch 13 'Nuclei'_
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