The critical angle for light going from medium X into medium Y is θ

(a) √3/√2 is the correct option

Given,n=1.5 and the speed of light in vacuum, c = 3x 108 ms-1. We know that the refractive index is given by the expression n =c/v where c is the...

(d) neither on elasticity nor on inertia. EXPLANATION:    The light does not require even a medium. The speed of light in a medium is the intrinsic property of that medium which...

(b) light goes from optically denser medium to rarer medium EXPLANATION:  When the light goes from a denser medium to lighter medium, it goes away from the normal. When the angle of...

(d) violet colour

(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion. 

(a) towards the proton beam

n= 1/sinC = 1/sin30º​ = 2 Speed of light in medium v = c/n = (3 x108)/2 = 1.5 x 108m/s = 1.5 x 108m/s

Angle of incidence i = (A + δm)/2 Concept : i + e = A + δ But at minimum angle of deviation, i = e

It means that CO2 cannot be liquefied above 30.98o C which is its critical temperature(Tc).  Critical pressure(Pc) – it is the pressure required to liquefy the gas at critical temperature.  Critical volume(...