Question

any one answer plz plz plz
​

Answer 1

Answer:

4.1

1st picture is for umbra

2nd picture for penumbra

Answer 2

If your move the screen away from the object, the shadow increases in size. Formation of umbra and penumbra both.Question 1.

Question 2.1) Do not ignite flames near the septic tank.

2) Be alert to shock and electrical hazards .

3) Never work alone around a septic tank.

4) Never enter a septic tank unless you are specially trained and are wearing special equipment and gear for that purpose, including a self-contained breathing apparatus