Advertisements
Advertisements
Question
Numerical Problem.
Inian and Ezhilan argue about the light year. Inian tells that it is 9.46 × 1015 m and Ezhilan argues that it is 9.46 × 10 12 km. Who is right? Justify your answer.
Advertisements
Solution
The magnitude of light year = 9.46 × 10<sup>15</sup> m. So Inian gave a correct answer.
APPEARS IN
RELATED QUESTIONS
Match the following.
| Column A | Column B |
| (1) Length | a. kilogram |
| (2) Mass | b. cubic metre |
| (3) Area | c. metre |
| (4) Volume | d. square metre |
Measure the yellow rectangle. It is ________ cm long.
How wide is the rectangle? ________ cm
How many stamps are needed to cover the rectangle?
You can play this game on the ground. Make two squares of one square meter each. Divide your class into two teams. Ready to play!
- How many of you can sit in one square meter?
In which SI unit, you can measure your height?
Length is a fundamental quantity.
Give some examples of larger length measures.
What is the unit of measurements of very small lengths?
In the parallax formula D = b/θ, what must be true about the angle θ for the calculation to be correct?
