Question

When the sun is low in the sky, allow a single ray of

sunlight to enter a darkened room through a window.

Notice the movement of dust particles in the air along

the path of the light ray. Record your observations. This

gives you an indication of the random movement of

molecules in a gas.​

Answer 1

Answer:

This effect is called Tyndall effect or scattering.

The dust particles scatter the light making the path of the light visible.

When sunlight passes through window of classroom its path is visible. This is due to scattering of light. This happens when light is scattered because of the dust particles in the atmosphere. Light scattering is a form of scattering in which light in the form of propagating energy is scattered. Light scattering can be thought of as the deflection of a ray from a straight path, for example by irregularities in the propagation medium, particles, or in the interface between two media.

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