Science, asked by sankarBhavsar, 1 year ago

A star is ten light years away from the earth. Suppose it brightens
up suddenly today. After how much time shall we see this change?


NCERT Class VIII
Science - Exemplar Problems

Chapter 17. Stars and Solar System

Answers

Answered by aqibkincsem
117

A lightyear is a system of the astronomical measure similar to the distance on which a light approximately travel in one year.


So one light year is equal to 9.4605284*10^(15) m, and in that case, if a star is ten light years away and brightens up suddenly, it will take around 10 years to see the changes happened on the earth.

Answered by Anonymous
37
I hope this helps you
Attachments:
Previous Question
Next Question
Similar questions
Science, 7 months ago
two example of plant disease​...
Biology, 7 months ago
Fill in the blanks: 5.) Roots absorb minerals by _________ and _________. 6.) The upward movement of sap through the xylem is called _________.​
Computer Science, 7 months ago
answer the following questions. which element of the Calc interface shows the sheet number of the particular spreadsheet lain all the features of the status bar of Calc.​
Science, 1 year ago
Which of the following is not a source of air pollution? (a) automobile exhaust (c) windmill (b) burning of firewood (d) power plant NCERT Class VIII Science - Exemplar Problems Chapter 18. Pollution of Air and Water...
Geography, 1 year ago
Why are well-developed soils found in low altitudes?
English, 1 year ago
a speech on science and future...
History, 1 year ago
information about mohammad ghazni...
Hindi, 1 year ago
essay on swachtha aur mein in hindi...