The correct exponential notation for Planck's constant is[tex]6.63\times10^{-34} Js[/tex].
Explanation:
Given that,
Planck constant =[tex]6.626070\times10^{-34} Js[/tex]
We need to find the correct exponential notation for Planck's constant
According to the given options,
In option (a) :
The given value in option is [tex]h= 6.62\times10^{34} J.s[/tex]
In this option, the given value is in three significant figures but the negative sign is missing in the exponential term.
So, this is the incorrect option.
In option (b) :
The given value in question is [tex]6.626070\times10^{-34} Js[/tex]
We write the value of the Planck constant with three significant figures.
The Planck constant with three significant figures will be
[tex]h=6.63\times10^{-34} Js[/tex]
So, this is the correct option.
In option (c) :
The given value is [tex]h= 6.02\times10^{34} J.s[/tex]
In this option, the given value is in three significant figures but this value is not the Planck constant value.
So, this is the incorrect option.
Hence, the correct exponential notation for Planck's constant is[tex]6.63\times10^{-34} Js[/tex].
The correct option is (b).
Reference :
https://brainly.com/question/15939529