What is the difference between shadows and images?

• DIFFERENTIATE BETWEEN LUMINOUS AND NON-LUMINOUS OBJECTS BY GIVING EXAMPLES

Write difference between Transparent , Translucent and Opaque objects?

What the conditions are requried for formation of the shadow

How to make pinhole camera?

write an activity to show light travels in straight line

What is the principle of a pinhole camera?

State three charateristics of the image formed in the pinhole camera .

Show a diagram.

Give the principle,construction and working of a pinhole camera.

give 4-5 examples of transparent, translucent and opaque

^{How To Make A Pin Hole Camera?} 

We can't see the shadow of a bird or an aeroplane flying high up in the air, because:

a. the umbra doesn't fall on the ground

b. the penumbra doesn't fall on the ground

c. the umbra is very faint

d. no shadows are formed for flying objects

kindly explain.........

 What is irregular reflection?

how does light help us to see things ?

in a pinhole camera why is the image formed upside down