What is the nature of image formed by convex and concave lens and mirrors and how to show the light reflected by them?

 what are any 3 uses of concave and convex lens?

-avi

 difference between concave mirror and convex mirror

Q1.Convex mirror are used as reflector in street lamps whereas concave mirror is used as a reflector in torch and car headlight.why?

Q2.In reflector telescopes the bigger curved mirror is a convex mirror.This sentence is false.Give reason why it is false?

Whats the difference between real and virtual image?

A convex lens can burn a piece of paper using sunlight. give reason

What is a newton's disc

what is the meaning of real image,inverted image,virtual image,erect image?

why is concave mirror called as the converging mirror?

what is dispersion of light??

define reflection of light

give examples of rectilinear propagation of light

what do you mean by lateral inversion?

 in the torch reflector cancave mirror is used then why convex mirror are used as reflector in street lamps

 Why is a concave lens also called a diverging lens ?