Question

describe the phenomenon of umbra and penumbra

Answer 1

Hiii

here your answer_^________

if you place an object such as a doll between the world and a lighted Candle in a dark room Dark Shadow is formed on the wall around is Dark Shadow is comparatively less dark patch is also observed third eye thus shadow consists of two digits namely the umbra and penumbra the central and the darkest part of the shadow that is the reason of total darkness which does not received any light from the source is called umbra region of the shadow the region of Partial darkness which surrounds the umbra is called penumbra..

hope its help you

@hero of all us alok

Answer 2

Hey there !

There are Two Types of shadows :-

◆ Umbra
◆ Penumbra

Points to remember !!
=====================

◆ Umbra is formed where no light reaches and it is a dark, black shadow.

◆ penumbra is formed where some light reaches and it is grey in color.

Example or Illustration :
======================

See the above figure, that is attached :)

In the above Figure, it Shows that ,

I have taken an apple for forming an image, you can see that I have lighted the torch on apple , and the apples shadow is formed in the screen.

=> The Darker and black shadow of apple is Umbra .

=> On the other hand, you can see A Grey shadow it is Penumbra.

==================================
Hopes this helps you !