Light falls at normal incidence on one face of glass prism of refractive index
then the angle of emergence when the angle of prism is 45°​

there are no correct statementd on the list of choices you provided.

number of electrons for neutral cl

a is the best answer your welcome

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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