Question

to show the path of a ray of
Do labelled ray diagram to show the path
incident obliquely on one face of a glass slab
of the material of a glass sa Goos
Calculate the refractive index of the material of a
that the speed of light through the glass slab is 2
air is 3 x 10 m/s.
Calculate the focal length of a lens, if its power is - 250.
OR​

Answer 1

Answer:

It may help you admit the brain list

I