Question

what is lateral shift?derive an expression for it?
answer it fast please

Answer 1

When a ray of light is incident obliquely on a parallel. sided glass slab the emergent ray shifts laterally . The perpendicular distance between the direction. of the incident ray and emergent ray is called. “lateral shift''.

See first figure. here OI' is normal shift of object.

Let OA = x,

then from Snell's law,

AI1 =

so, the object distance for the refraction at surface EF is BI1 =

so, applying Snell's law at the surface EF,

BI' =

so, shift OI' = (AB + OA) - BI'

= (t + x) -

see 2nd figure, here d is lateral shift.

from ∆ABC,

=

= .....(1)

from Snell's law,

or,

.......(2)

from equations (1) and (2),

for small incident angle,

here it is clear that, it depends on incident angle, refractive index and thickness of refractive medium.

hope it helps you......

Please mark it BRAINLIEST Dude.........

Answer 2

Explanation:

When a ray of light is incident obliquely on a parallel. sided glass slab the emergent ray shifts laterally . The perpendicular distance between the direction. of the incident ray and emergent ray is called. “lateral shift''.