The reflective index of glass is 1.4 and speed of light in air is 10 to the power of 8 calculated the speed in water
Answers
Answered by
1
Answer:
we know that refractive index n=
speedoflightinmedium
speedoflightinvacuum
where c=3×10
8
m/s
1.5=
v
c
v=
1.5
3×10
8
v=2×10
8
m/s
For critical angle we will use snell's law
C is critical angle
n
glass
sinC=n
air
sin90 n
air
=1
sinC=
n
glass
1
=
1.5
1
C=41.8
o
Similar questions