write down snail formula
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it's snell's formula,
Snell’s law tells us the degree of refraction and relation between the angle of incidence, the angle of refraction and refractive indices of given pair of media.
(formula is given in attachment)
na = index of refraction in material a, (unitless)
nb = index of refraction in material b, (unitless)
θa = angle of light relative to normal to the barrier in material a, (radians or degrees)
θb = angle of light relative to normal to the barrier in material b, (radians or degrees)
Snell’s law tells us the degree of refraction and relation between the angle of incidence, the angle of refraction and refractive indices of given pair of media.
(formula is given in attachment)
na = index of refraction in material a, (unitless)
nb = index of refraction in material b, (unitless)
θa = angle of light relative to normal to the barrier in material a, (radians or degrees)
θb = angle of light relative to normal to the barrier in material b, (radians or degrees)
Attachments:
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