Advertisements
Advertisements
प्रश्न
A star is 10 light years away from the earth. Suppose it brightens up suddenly today. After how much time shall we see this change?
Advertisements
उत्तर
As 1 light year is the distance covered by light in one year. So, if the star which is 10 light years away from the earth glows today, then it will be seen after 10 years.
APPEARS IN
संबंधित प्रश्न
Why is the distance between stars expressed in light years? What do you understand by the statement that a star is eight light years away from the Earth?
Name the different types of stars.
A star rises at 8 pm tonight. At what time will it rise after a month? Why?
What is meant by 'The sun enters a nakshatra'?
State whether the following statement is ‘True’ or ‘False’.
All the stars are at the same distance from us.
In the picture of rotating earth given as figure mark the position of pole star.
Write the names of all planets in the figure.
What is the distance that light travels in one year called?
Write a note on artificial satellites.
Stars appear to twinkle. Give reason.
