Question

which property of light makes a pencil cast shadow when it is held in front of a light source??​

Answer 1

Answer:

Moreover, this shadow doesn't appear completely dark as some light rays bounce off the object and reflect on the surface with reduced intensity. Therefore, when a pencil is held in front of a light source and a shadow is formed, it shows light's property of travelling in a straight line.

Answer 2

Explanation:

light travels in a straight line path hence it makes a pencil cast shadow when it is held in front of a light source