tiny-tim said:Hi Pranav-Arora!
Hint: critical angle.
Optics is the branch of physics that deals with the study of light and its behavior. It includes the study of how light interacts with matter, how it is produced and detected, and how it travels through different mediums.
Refraction is the change in direction of light as it passes through different mediums, such as air, water, or glass. This change in direction is caused by a change in the speed of light as it travels through the different medium.
A spherical surface is a curved surface that is part of a sphere. It has a fixed center point and a constant radius, which makes it symmetrical in all directions.
When light passes through a spherical surface, it bends or changes direction due to the change in the speed of light as it enters or exits the medium. This bending of light is known as refraction and can be calculated using the laws of refraction.
Refraction at spherical surfaces has many practical applications, such as in the design of lenses for eyeglasses, cameras, and telescopes. It also plays a crucial role in the functioning of optical instruments and devices, such as microscopes and laser technology.
