Answer:
The answer to A strip of copper metal is placed in an aqueous sodium chloride solution. According to the standard reduction potential below, is Option A) No reaction occurs
Explanation:
Aqueous sodium chloride solution is similar to salt and water mixed together.
Copper doesn’t dissolve in salty water. However, exposure of the metal to air and then to water results in an oxide layer on the surface of copper which is referred: the dull reddish brown copper(I) oxide and this exists in an equilibrium with the outer oxide layer of black copper(II) oxide.
If you put a strip of copper metal is placed in an aqueous sodium chloride solution, you will not observe any reaction because the oxide layer on the surface of copper is too thin for to be noticed other than by a dulling or darkening of the surface, not thick enough to be obvious.
Answer:
Light travels in electromagnetic waves.
Answer:
Explanation:
According to Gauss's theorem , total flux coming out of a closed surface area is equal to 1/ε₀ times charge enclosed
This flux coming out of enclosed charge does not depend upon the shape of enclosing surface area . It only depends upon the charge enclosed .
It the present context , in both the case ie in case of donut or sphere , since amount of charge enclosed is same , flux coming out too will be same in both the case
Hence the required ratio = 1 : 1
I think (C )
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Because of the power of the light it is very strong so that is why light reaches all the way to earth
