Heat energy radiated by the earth changes the density of the atmospheric layers continuously. This changing density of the air layers near the ground affects its refractive index....
The relationship between the object distance (u), the image distance (v) and the focal length (f) of the lens is called lens formula. From the above formula, Focal...
The image formed by the actual intersection of refracted rays through a lens is called the real image. The real images can be caught on the screen and...
A lens is a thin piece of a transparent material bounded by two spherical surfaces or by one spherical and other plane surface. The width or diameter of...
Refractive index is a fundamental optical property of materials, and it plays a crucial role in many applications, including lens design, fiber optics, and spectroscopy. It measures the...
Humidity is the amount of water vapour present in atmosphere. The amount of water vapour in atmosphere changes with time and weather. The air containing water vapour is...
Matter exists in three states viz., solid, liquid and gas. The change from one state to another can be brought about by the application or withdrawal of heat....
