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 do some stars appear blue and some red?
Which of the following figures depicts the position of pole star correctly?
Name the star that appears to be stationary in the night sky.
Name the planets which have more than 60 Moons.
Write a note on the planet.
Write a note on artificial satellites.
How is the pole star distinguished from other stars? Explain.
Stars are built by ____ gases.
We can see nearly ______ stars with the naked eye in the dark night.
Briefly explain
- brightness
- color of the star.
