The air above a heat source becomes hotter and less dense than the cooler air above it. This temperature difference causes variations in the refractive index of the air. As a result, the apparent position of objects seen through this ...

The apparent wavering or flickering of objects is caused by atmospheric refraction in a local environment. The air just above a heat source becomes hotter, making it lighter (less dense) than the cooler air above. Since the physical conditions of ...

A rainbow is always formed in a direction opposite to that of the Sun because the water droplets in the atmosphere act as tiny prisms. These droplets refract and disperse sunlight, and the observer sees the rainbow where the dispersed ...

A rainbow is formed in the sky after a rain shower due to the dispersion of sunlight by tiny water droplets present in the atmosphere. The water droplets act like small prisms, refracting and dispersing the incident sunlight. This process ...

The common characteristic of light that is often referred to as white light is that it gives a spectrum similar to that of sunlight. White light is a combination of different colors, and when it passes through a prism or ...