Question

what is the formula to find the fluctuation of the body shape?write any two rules of refraction of light through a lens....​

Answer 1

Answer:

1.Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.

2.Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.