Why are the colours of different objects different? Answer: Different objects have different colours. The colour of an opaque object is the colour of the light it reflects. Objects absorb light of other colours. If the object reflects all colours of white light, the object appears white. Again, if the object absorbs all colours of […]
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Answer: Red flowers look red in white light as red flowers absorb all other colours except red from white light and reflect only red.
Why does red rose appear black in blue light? Answer: A red rose will appear black in a room lit with blue light. Because red roses only reflect red light, absorbing all other colours. Now when blue light falls on the red rose, the red rose absorbs the blue light but does not reflect any
How will red flowers look in a blue-light room and why? Answer: A red flower will appear black in a room lit with blue light. Because red flowers only reflect red light, absorbing all other colours. Now when blue light falls on the red flower, the red flower absorbs the blue light but does not
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Why does the green leaf appear black in red light? Answer: Green leaves appear black in red light. Because green leaves only reflect green light, absorbing all other colours. Now when red light falls on the green leaf, the green leaf absorbs the red light but does not reflect any light. So, green leaves appear
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Why does the sky look blue? Answer: The sky appears blue due to the scattering of sunlight by dust particles floating in the atmosphere. Of the seven colours of sunlight, blue has the shortest wavelength. As we know, the shorter the wavelength of the light, the higher the diffraction. As the wavelength of the blue
Why does the sun appear red at sunrise and sunset? Answer: Sunlight is scattered by dust particles floating in the atmosphere. As we know, the longer the wavelength of the light, the less the diffraction. Of the seven colours of sunlight, red has the longest wavelength; So the red light rays are less deflected. The
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Answer: If there was no atmosphere, there would be no refraction of sunlight. Sunlight reaches our eyes directly. Looking up, the sun could be seen, but the rest of the sky looked black. Because no scattered light would reach our eyes from there.
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Is the sky of the Moon blue? Answer: The sky of the Moon is not blue, but black. The Moon has no atmosphere. So sunlight is not deflected. That is, no scattered light from the lunar sky reaches the surface of the Moon. As a result, the sky appears black from the Moon.
Answer: We use a blue colour solution after washing the white clothes. White clothes turn slightly yellow after being washed a few times. Since yellow and blue are complementary colours, the cloth becomes pale white after washing in blue water.
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