Question

CASE STUDY
When electromagnetic radiation, in the form of visible light, travels from one substance or medium into another, the light waves may undergo a phenomenon known as refraction, which is manifested by a bending or change in direction of the light. Refraction occurs as light passes from one medium to another only when there is a difference in the index of refraction between the two materials. The effects of refraction are responsible for a variety of familiar phenomena, such as the apparent bending of an object that is partially submerged in water and the mirages observed on a hot, sandy desert. The refraction of visible light is also an important characteristic of lenses that enables them to focus a beam of light onto a single point.
Light bends in all materials at
Same angle (b) Different angles
Nearly same angles (d) Opposite angles
Light enters from air to Kerosene having refractive index 1.44. What is the speed
of light in the Kerosene? The speed of light in vacuum is 3 × 108 m/s
(a) 2.88× 108 m/s (b) 3 × 108 m/s (c) 1.44 × 108 m/s (d) 2.08 × 108 m/s
III. The formula to calculate refractive index is
n = cv (b) n = c/v (c) n = v/c (d) v = nc
IV. The phenomenon which explain the apparent bending of an object that is partially
submerged in water is
Reflection of light (b) Scattering of light
(c) Refraction of light (d) Absorption of light
V. The refractive index of Diamond is
(a) 1.33 (b) 0.5 (c) 1.5 (d) 2.42​

Answer 1

Answer:

When electromagnetic radiation, in the form of visible light, travels from one substance or medium into another, the light waves may undergo a phenomenon known as refraction, which is manifested by a bending or change in direction of the light.

Explanation: