A) \[J\,\,{{s}^{-2}}\]
B) \[J\,\,{{s}^{2}}\]
C) \[J\,\,s\]
D) \[J/s\]
Correct Answer: C
Solution :
The formula for Plancks constant is \[=\frac{Energy}{Frequency}\] Hence, unit of Plancks constant is \[=\frac{Unit\,\,of\,\,energy}{Unit\,\,of\,\,frequency}=\frac{joule}{{{\sec }^{-1}}}\] \[=J\,\,s\]
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