A vessel is half filled with a liquid of refractive index μ. The other half of the vessel is filled with an immiscible liquid of refractive index 1.5μ. The apparent depth of vessel is 50% of the actual depth. The value of μ is
A ray of light from a denser medium strikes a rarer medium at an angle of incidence i. If the reflected and refracted rays are mutually perpendicular to each other then what is the value of critical angle ?
The speed of light in media M1 and M2 is \[1.5\times 10^{8} m/s and 2.0\times 10^{8}\] respectively. A ray of light enters from medium M1 to M2 at an incidence angle i. If the ray suffers total internal reflection, the value of i is :
A transparent solid cylindrical rod has a refractive index of 2/√3. It is surrounded by air. A light ray is incident at the mid-point of one end of the rod as shown in the figure.
The incident angle θ for which the light ray grazes along the wall of the rod is
A point source of light is kept at a depth of h in water of refractive index 4/3. The radius of the circle at the surface of water through which light emits is
A small coin is resting on the bottom of a beaker filled with liquid. A ray of light from the coin travels upto the surface of the liquid and moves along its surface. How fast is the light travelling in the liquid ?
A convex lens is made up of three different materials as shown in the figure. For a point object placed on its axis, the number of images formed are :
A concave spherical surface of radius of curvature 10 cm separates two medium X & Y of refractive index 4/3 & 3/2 respectively. If the object is placed along principal axis in medium X then :
Figure shows graph of deviation d versus angle of incidence for a light ray striking a prism. Angle of prism is :
For a prism of refracting angle A and refractive index 2. Assume rays are incident at all angles of incidence 0° ≤ i ≤ 90°. Ignore partial reflection.
