The value of Planck's constant in SI unit is

Options

A. `6.6 xx 10^(-32) g m^(2) sec`
B. `6.6 xx 10^(-34) kg m^(2) sec^(-1)`
C. `6.6 xx 10^(-33) kg m sec^(-1)`
D. `6.6 xx 10^(-34) g m^(2) sec`

Answer

B

Explanation

the value of Planck's constant `= 6.6 xx 10^(-34) kg m^(2) s^(-1)`.