Advertisements
Advertisements
प्रश्न
To an astronaut in a space-ship, the earth appears ______.
पर्याय
White
Red
Blue
black
Advertisements
उत्तर
To an astronaut in a space-ship, the earth appears blue.
APPEARS IN
संबंधित प्रश्न
What is meant by dispersion of white light? Describe the formation of rainbow in the sky with the help of a diagram.
We can see the sun before the actual sunrise by about:
(a) 5 minutes
(b) 2 minutes
(c) 2 hours
(d) 20 minutes
State whether the following statements are true or false:
The scattering away of blue light makes the sun appear red at sunset.
What colour does the sky appear to an astronaut?
The blue colour of sky is due to:
(a) refraction of light
(b) dispersion of light
(c) diffraction of light
(d) scattering of light
Using the phenomenon of scattering of light, explain why there is a difference in the colour of the sun as it appears during sunrise and at noon.
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light ____________.
What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
The colour of clear sky from the earth appears blue but from the space it appears black. Why?
