u/Chemical-Deer3334

My unfinished anatomy Mind map what do guys think is it even necessary?? Becoz it took me 3 hrs to complete, the same as watching lectures both take long hrs but questions practice is nil so am I just wasting time ??

Btw ignore the odd shape I have added another page to a bigger page😅

In 1 question why did we take pie r^2 why not 4 pie r^2 if we assumed tht we count only area tht is normal to sun rays then ok buttttt,

In next ques 30 we took 4 pie r^2 for radiation wala sphere but why we took here 4 pie R^2 we took 4pie thts why we get r^2 and R^2 on numerator and denominator but here in this question they said tht consider area normal to rays

Why is like tht(⁠ノ⁠｀⁠Д⁠´⁠)⁠ノ⁠彡⁠┻⁠━⁠┻

1.Can't we cut dt there😅

2.Like I have marked there ,where did w came and also the negative sign

3. On the top why did we ignored the negative sign on Ldi by dt expression

The last one is my first one Mindmaps if anyone has any suggestions drop them