Different cases in the formation of shadows

it is a very fast way to learn and develop skills according to that

1. DIFFERENT CASES IN THE FORMATION OF SHADOWS

2. LUNAR ECLIPSE

3. LUNAR ECLIPSE It occurs when the moon moves into earth’s shadow. The sun, the moon and the earth are exactly aligned with the earth between the other two. A totally eclipsed moon is called the “BLOOD MOON” due to its reddish color or appearance It takes an average of 2.5 years for an actual blood moon to occur.

4. SOLAR ECLIPSE

5. SOLAR ECLIPSE A solar eclipse occurs when a portion of the earth is engulfed[To cover or surround something completely ]. This occurs when the sun, the moon , and the earth are aligned, in such alignment the three of them make a solar eclipse. It takes 375 years to a complete solar eclipse to occur at the same place.

6. When does a solar eclipse occur It occurs on a draconic month { remember it occurs twice } [27.212220 days]

7. When does a full moon occur New moon occurs every syndronic month { remember it occurs only once } [29.530587981 days]

8. Umbra , Penumbra and Antumbra I LEARNT ABOUT THEM AND NOW IT IS YOUR TURN NOW

9. UMBRA Umbra means it is a complete shadow . It is no wonder it is named as such since this type of shadow is responsible for greatest eclipses namely the total lunar eclipse and the solar eclipse. This type of shadow also creates partial eclipses, [it covers the full moon][or sun ]

10. PENUMBRA Although it does not mean a complete shadow, it is the lighter outer part of a shadow and it is a factor that causes penumbral lunar eclipses and partial lunar eclipses when viewed from penumbra even the fully hidden moon or no moon [seen from umbra]seems to be like a penumbral lunar eclipse. [ it covers small portions of the moon].

11. ANTUMBRA There is small portion of sun that we can see it is so small. [it covers large parts of the moon but it leaves small parts of it]

12. Different cases in the formation of shadows Getting to the actual title

13. When the source of light is point source and extended obstacle Here the shadow has no penumbra only umbra due to distance between the light source [here it is closer to the light source]

14. When obstacle is bigger than the extended source Here the penumbra is formed due to the distance between the light source and the opaque body[it is far away from the light source]

15. When source of light is bigger than the obstacle In this case the light source is bigger than the opaque body so smaller shadow will be formed[smaller umbra and penumbra See what

16. Thank you For listening to me all the while