Which relation correctly gives the apparent depth of an object at real depth in a…

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

Which relation correctly gives the apparent depth

h'

of an object at real depth

h

in a medium of refractive index

n

when it is viewed normally from air? (a)

h' = hn

(b)

h' = \dfrac{h}{n^{2}}

(c)

h' = \dfrac{h}{n}

(d)

h' = \dfrac{h\,(n-1)}{n}