A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence (∠i). He then measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be : (a) ∠i>∠r>∠e (b) ∠i=∠e>∠r (c) ∠i<∠r<∠e (d) ∠i=∠e<∠r

A student very cautiously traces the path of a ray through a glass sla

1.	A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence (∠i). He then measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be : (a) ∠i>∠r>∠e (b) ∠i=∠e>∠r (c) ∠i<∠r<∠e (d) ∠i=∠e<∠r
Answer» A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence $(∠ i)$ . He then measures the corresponding values of the angle of refraction $(∠ r)$ and the angle of emergence $(∠ e)$ for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be : (a) $∠ i > ∠ r > ∠ e$ (b) $∠ i = ∠ e > ∠ r$ (c) $∠ i < ∠ r < ∠ e$ (d) $∠ i = ∠ e < ∠ r$