Question

In an exceperiment to trace the path of a way of light passing through a rectangular gass salab, four students tabulated their observations given below. as D student zi zr А A 30* B 30° 20 32.5° 30° 199 30° 30° 21.5° 18° 329 29 Le​

Answer 1

Answer:

Explanation:

We know that angle of incidence is equal to angle of emergence.  

And for a light ray going from rarer to denser medium we also know that angle of incidence is greater than angle of refraction

Thus it implies that angle of emergence is greater than angle of refraction.  

B. angle of emergence is equal to angle of incidence

C.  Since angle of emergence is equal to angle of incidence, thus emergent ray is parallel to incident ray.