[amp_mcq option1=”Ultra violet” option2=”Red light” option3=”Infra red” option4=”Cosmic rays” correct=”option3″]
The correct answer is C. Infra red.
Ultraviolet light is a type of electromagnetic radiation with a wavelength shorter than that of visible light. It is invisible to the human eye, but it can cause sunburn and other skin damage. Red light is a type of visible light with a wavelength longer than that of green light. It is not harmful to humans. Infrared light is a type of electromagnetic radiation with a wavelength longer than that of red light. It is also invisible to the human eye, but it can be felt as heat. Cosmic rays are high-energy particles that come from outside the solar system. They are not harmful to humans in small doses, but they can be dangerous in large doses.
Infrared light is the part of sunlight that makes a solar cooker hot. This is because infrared light is absorbed by objects, which then convert the energy into heat. This is why you can feel the heat from a fire even if you are not looking directly at it. The heat from the sun’s infrared light is what cooks food in a solar cooker.