Question

Kindly answer both the questions with full explanation ):​

Answer 1

Answer:

33. b)60° 34. b) 1.21

Explanation:

33.)coz angle of incidence equals to angle of reflection.So the angle between the incident ray and the reflected ray will be the sum of incident angle and reflected angle that is 30° + 30°=60°

34.) since both the refractive index r with respect to air we can directly compare both of them and calculate their refractive index with respect to each other

refractive index of glass with respect to alcohol will be equal to 1.65 /1.36= 1.21

Answer 2

Answer:

33•Incident angle=angle of reflection

So angle of reflection is 30°.

So angle between incident ray and reflected ray=

Angle of incidence +angle of reflection=30° +30°=60°

34•Refractive index of medium 1 with respect to medium 2 is =

Refractive index of medium 1 with respect to air/ Refractive index of medium 2 with respect to air

So answer is 1.65/1.36= 1.21