Advertisements
Advertisements
प्रश्न
To an astronaut in a space-ship, the earth appears ______.
विकल्प
White
Red
Blue
black
Advertisements
उत्तर
To an astronaut in a space-ship, the earth appears blue.
APPEARS IN
संबंधित प्रश्न
With the help of scattering of light, explain the reason for the difference in colours of the Sun as it appears during sunset/sunrise and noon.
Explain giving reason why the sky appears blue to an observer from the surface of the earth? What will the colour of the sky be for an astronaut staying in the international space station orbiting the earth? Justify your answer giving reason.
Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.
Which colour of the spectrum has
longest wavelength,
What is the colour of the sunlight scattered by the air molecules in the atmosphere?
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
In white light of sun, maximum scattering by the air molecular present in the earth’s atmosphere is for ______.
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
Blue litmus is added to two test tubes A and B containing dilute HCl and NaOH. Answer respectively. In which test tube a colour change will be observed? State the colour change and give its reason.
Draw a labelled diagram to show
- the reddish appearance of the sun at sunrise or sunset, and
- white appearance of the sun at noon when it is overhead.
