Prism

Question 1

Deviation by prism

Answer 1

delta + A = i + e

Question 2

Maximum value for n?

Answer 2

= [1 + (cotA/2)^2]

Question 3

Angle of prism =?

Answer 3

r + r’

Question 4

Grazing incidence =?

Answer 4

i = 90

Question 5

Grazing emergence =?

Answer 5

e = 90

Question 6

For minimum deviation

Answer 6

i = e
r = r'

n = [sin(A + delta)/2] / sin(A/2)

Question 7

Why does dispersion occur?

Answer 7

It occurs due to different refractive index for different wavelengths

Question 8

Angular dispersion =?

Answer 8

Theta = (nv - nr)A

Question 9

Dispersive power

Answer 9

w = (nv -nr)/(n-1)

Question 10

For dispersion without deviation

Answer 10

A(n - 1) = -A’(n’ -1)

Question 11

Deviation without dispersion

Answer 11

A(nv -nr) = -A’(nv’ -nr’)