Advertisements
Advertisements
प्रश्न
Complete the following statement:
When the sun is setting, the light from it has to travel a ................ thickness of the earth's atmosphere and only ................ wavelength ................ light is able to reach us. Sunset is therefore ................
उत्तर
When the sun is setting, the light from it has to travel a greater thickness of the earth's atmosphere and only the longer wavelength red light is able to reach us. Sunset is therefore red in colour.
APPEARS IN
संबंधित प्रश्न
What is a rainbow? Draw a labelled diagram to show the formation of a rainbow.
Which colour of light has the shorter wavelength − red or violet?
Where in nature can you find evidence that white sunlight may be made of different colours?
Why does the sky appear dark (or black) to an astronaut instead of blue?
Why are the 'danger signal' lights red in colour?
What characteristic property of light is responsible for the blue colour of the sky?
A beam of blue, green and yellow light passes through the earth's atmosphere. Name the colour which is scattered the most.
Draw a labelled diagram to show (i) reddish appearance of the sun at the sunrise or the sunset and (ii) white appearance of the sun at noon when it is overhead.
Twinkling of stars is due to atmospheric
Is the position of a star as seen by us its true position? Justify your answer.
