1.

If I n denotes the normal intensity and I α represents the intensity at angle α, then$

A. I <sub>α </sub>= 2 I <sub>n</sub> cos α
B. I <sub>α </sub>= 3 I <sub>n</sub> cos α
C. I <sub>α </sub>= 4 I <sub>n</sub> cos α
D. I <sub>α </sub>= I <sub>n</sub> cos α
Answer» E.


Discussion

No Comment Found

Related MCQs