(1.)State the properties of light?
(2).What is rectilinear propagation of light?
(3)what is the speed of light in vaccum?
(4).mention the laws of reflection
(5).what is
(i) incident ray
(ii) reflected ray
(iii)normal
(iv)angle of reflection or incidence

(6). how many types of reflection and explain it
(7) uses of plane mirror
(8) characteristics of plane mirror
(9)uses of convex and concave mirror
(10) explane human eye
​