Physics, asked by rojahdrojahd, 1 month ago

a ray of light is incident on a surface of glass slab at angle 45 degree if lateral shift produced per thickness is 1/root3 meter then r is​

Answers

Answered by divyanshpandya792
1

Correct option is

B

tan

−1

(1−

3

2

)

Lateral shift, Y=

cosr

tsin(i−r)

t

Y

=

cosr

sin(i−r)

=

cosr

sinicosr−cosisinr

[using identity, sin(A−B)=sinA⋅cosB−cosA⋅sinB]

=sini−cositanr

3

1

=sin45

o

−cos45

o

tanr=

2

1

(1−tanr)

3

2

=1−tanr

⇒tanr=1−

3

2

∴r=tan

−1

(1−

3

2

).

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