A glass slab of thickness t and refractive index μ . Calculate the time taken by light to travel this thickness.

Question

A glass slab of thickness t and refractive index μ . Calculate the time taken by light to travel this thickness. (A)  tμ c  (B)  (tc/μ)  (C)  (t/μ c)  (D)  (μ t/c)

Tardigrade Admin · Accepted Answer

Time taken by light ray to pass through glass slab =(μ t/c) where t= geometrical path μ t=optical path

Q. A glass slab of thickness t and refractive index $μ$ . Calculate the time taken by light to travel this thickness.

$t μ c$

$\frac{t c}{μ}$

$\frac{t}{μ c}$

$\frac{μ t}{c}$

Time taken by light ray to pass through glass
slab $= \frac{μ t}{c}$
where $t =$ geometrical path
$μ t =$ optical path

Q. A glass slab of thickness t and refractive index μ . Calculate the time taken by light to travel this thickness.

tμc

μtc​

μct​

cμt​