Question

Name the component of sunlight which facilitates drying of wheat after harvesting

Answer 1

Grains like wheat and barley need to need to be dried before harvesting in order to store safely.

Drying can be done both artificially by dryer and by natural methods like sunlight.

Sunlight is a combination of visible, infrared and ultraviolet rays.

Infra red rays also known as ‘heat radiation’ is responsible for the drying of wheat after harvesting as it is quickly absorbed by the wheat plant cells.

Answer 2

Infrared rays facilitates the drying of wheat.

Explanation:

• The sunlight consists of many rays of different wavelengths.
• It is a combination of infrared, visible, and ultraviolet rays.
• Ultraviolet rays are harmful for humans as they cause skin cancer.
• All of these rays are invisible to the human naked eye.
• The infrared rays range from 400 - 700 nm and are also known as the heat rays or heatwaves.
• These rays dry the wheat by draining the excess water.