Refraction From Slab|Relation Between Real & Apparent Depth

Real and Apparent Depth

The equation of refraction at a spherical surface is mu_2/v-mu_1/u=(mu_2-mu_1)/R Taking R=oo , show that this equation leads to the equation (Real depth)/(Apparent depth)=mu_2/mu_1 for fraction at a plane surface.

Laws Of Refraction|Questions|Apparent Depth

The refractive index of water as measured by the relation p = (Real depth)/ (Apparent depth) was found to have the values 1.29, 1.33, 1.34, 1.35, 1.32, 1.36, 1.30, 1.33. Calculate mean value of p.

A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (Refraction index= 4//3 ).The difference between apparent depth of the floor at A &B when seen from vertically above is equal to

A ray of light passes from vacuum into a medium of refractive index n . If the angle of incidence is twice the angle of refraction , then the relation between the angle of incidence and the refractive index is

Circle OF Illumination||Apparent Depth

Questions|Refraction From Slab|Apparent Shift From Slab|Important Points|Questions|Lateral Shift

A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (refractive index = 4/3). The difference between apparent depth of floor at A and B when seen from vertically above is equal to