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प्रश्न
Write true or false.
Every measurement involves two things – a number and a unit.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
When the planet Jupiter is at a distance of 824.7 million kilometres from the Earth, its angular diameter is measured to be 35.72″ of arc. Calculate the diameter of Jupiter
Assertion (A): Distance between two celestial bodies is measured in terms of light year.
Reason (R): The distance travelled by the light in one year is one light year.
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.
How close was your earlier guess? Discuss.
Chumki, Jhumri, and Imran need wire to make a fence.
- How much wire in all will the three need?
What unit will you use to measure the length of our classroom?
SI unit of electric current is ______.
How many astronomical units (A.U.) make 1 parsec?
Why is Earth's orbit used instead of its diameter to measure distances to stars using the parallax method?
What is an Astronomical Unit (AU)?
