The emission of photoelectrons from a metal surface ceases when the wavelength of the incident light exceeds 5.6x10-'m. Calculate the maximum kinetic energy (in en op electrons emitted from the surface when the incident light has a wavelength of 4.2 x 10-'m 197 ​

3. dark matter

empty space could also be a simple vacuum

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j