1.A student lying on the floor near a swimming pool wants to see an object at its bottom surface. The angle of incidence of light from the object on the surface of water is called _?

2.Theangle of deviation A of a reflected light from the incident light B is_?(180-A),(180-2A)

1. Critical angle. 

for this angle the ray does not move to the rare medium but travels along the interface. 

2. (180-2A)

 you can find this by simply drawing the ray diagram for incident and reflected ray. 

  • 0
What are you looking for?