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11.Dual Nature of Radiation and matter
easy
$10^9\ Hz$ આવૃત્તિના ફોટોનનું વેગમાન કેટલું હશે?
A
$31\ kg m/s$
B
$7.3 \times 10^{-29}\ kg m/s$
C
$2.2 \times 10^{-33}\ kg m/s$
D
$6.6 \times 10^{-26}\ kg m/s$
Solution
આવૃતિ $ = \,\,\,109\,\,Hz$
$\bar P = \frac{h}{\lambda } = \frac{{hf}}{c}$ $ = \frac{{6.6 \times {{10}^{ – 34}} \times {{10}^9}}}{{3 \times {{10}^8}}}$
$ = 2.2 \times {10^{ – 33}}kg\,\,m/\sec $
Standard 12
Physics
