Mid term Questions

Question 1

When a wave encounters a slit, it will pass through.What is this behaviour called?

Answer 1

Diffraction

Question 2

The period of a wave is how many cycles happen in one second:

Answer 2

false

Question 3

When a light ray travels from a less optically dense (fast) medium to a more optically (slow) dense medium the ray will bend toward the normal

Answer 3

true