. A light ray passes from glass slab if the angle of incidence is 30 degree and one angle of refraction is 20 degree then the value of angle of refraction 2 and angle of emergent is respectively *
2 points
r2 = 40degree e =30 degree
r2 = 20 degree e = 30 degree
r2 = 15 degree e = 25 degree
None of these
Answers
Answered by
1
Answer:
none of these
Explanation:
Given ,
n
ag
=
2
3
∠i=30
0
From snell's law
n=
sinr
sini
By putting values of n, i in equation
we get
2
3
=
sinr
sin30
0
⇒sinr=
3
1
r=19
0
47
′
≃20
0
the angle of refraction is 20 degree.
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Answered by
0
Answer:
yaa
Explanation:
12×40 karo Jo answer aata hai usse kuch Matlab mat rakho padhai likhai karo ais yyes banno desh ka naam Roshan karo
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