Advertisements
Advertisements
प्रश्न
Measure the yellow rectangle. It is ________ cm long.
Advertisements
उत्तर
The yellow rectangle is 14 cm long.
APPEARS IN
संबंधित प्रश्न
The nearest star to our solar system is 4.29 light years away. How much is this distance in terms of parsecs? How much parallax would this star (named Alpha Centauri) show when viewed from two locations of the Earth six months apart in its orbit around the Sun?
Fill in the blank.
In the ............ system, length is measured in centimetres.
While measuring the length of an object using a ruler, the position of your eye should be
Ten millimetre makes one centimetre.
Fill in the following chart.
| Property | Definition | Basic Unit | Instrument used for measuring |
| Length | |||
| Mass | |||
| Volume | |||
| Time |
Match the following.
| 1. | Length | kelvin |
| 2. | Mass | metre |
| 3. | Time | kilogram |
| 4. | Temperature | second |
Have you seen frogs? Where? How many different types of frogs have you seen? Are all the frogs of the same length? Here are two interesting examples.


What is Dinesh’s height in metres? _____ m _____ cm.
Now cut strips of equal sizes out of it. Using tape join the strips, end to end, to make a belt.
How long is your belt? _________
So Anar also tried many different ways to make a boundary for 800 square meters of land.
He made rectangles A, B, and C of different sizes. Find out the length of the boundary of each. How much gold wire will he get for these rectangles?
- A
Gold wire for A = _________ metres - B

Gold wire for B = _________ metres - C
Gold wire for C = __________ metres
But then Anar made an even longer rectangle... See how long!
- D

So he will get __________ metres of gold wire!!
In which SI unit, you can measure your height?
Length is a fundamental quantity.
What unit will you use to measure the length of our classroom?
The distance of a galaxy is of the order of 1025 m. Calculate the order of magnitude of time taken by light to reach us from the galaxy.
How many astronomical units (A.U.) make 1 parsec?
What is an Astronomical Unit (AU)?
