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13.Nuclei
easy
એક કયુરી $U^{234}$ નું દળ કેટલું થાય?
A
$3.7 \times 10^{10} \,gm$
B
$2.348 \times 10^{23} \,gm$
C
$1.48 \times 10^{-11} \,gm$
D
$6.25 \times 10^{-34} \,gm$
Solution
$1 \,curie = 3.71 \times 10^{10} \, disintegration/sec$
$6.02 \times 10^{23} \,atoms \,of \,{U^{234}} = 234\,gm$
$\therefore Mass \,of \,3.7 \times \,10^{10} \,atoms \,= \frac{{234 \times 3.71 \times {{10}^{10}}}}{{6.02 \times {{10}^{23}}}} = 1.48 \times {10^{ – 11}}\,gm$
Standard 12
Physics
