1
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
A ray of light strikes a glass plate at an angle of 60$$^\circ$$. If the reflected and refracted rays are perpendicular to each other, the refractive index of glass is
A
$${{\sqrt 3 } \over 2}$$
B
$${3 \over 2}$$
C
$${1 \over 2}$$
D
$${\sqrt 3 }$$
2
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
Light travels through a glass plate of thickness t and having refractive index $$\mu$$. If c be the velocity of light in vacuum, time taken by the light to travel through this thickness of glass is
A
$${t \over {\mu c}}$$
B
$${{tc} \over \mu }$$
C
$${{\mu t} \over c}$$
D
$$\mu \,tc$$
WB JEE Subjects