Question

help me army plzz

this is techno syllabus frm 9th class

optics

plz help me I had exam tomorrow I have to prepare ​

Answer 1

Answer:

Hence let's consider n=1 the refractive index of air, and y=48.2

We know that x=90° because we have a critical angle, in which the angle refracts

sin(x)= sin (90°)=1 this m* sin (y)=n*sin (x) hence m=1/sin (48.2) is our refractive index m= 1.341424808

Answer - 1.34

Answer 2

Answer:

i too don't know sis now only..i am not in update because of my exam..

really sorry..