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A magnesium surface has a work function of 2.65 eV. Electromagnetic waves with a wavelength of 280 nm strike the surface and eje
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Answer:
"6.67 mm" is the right solution.
Explanation:
The given values are:
- L = 2.5 m
- y = .0125
- λ = 600 nm
As we know, the equation
⇒
On substituting the values, we get
⇒
On applying cross multiplication, we get
⇒
⇒
⇒
For new distance, we have to put this value of "a" in the above equation,
⇒
⇒
⇒
⇒
The total distance will be twice the value of "y", we get
=
or,
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