मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 6

Fill in the Blank. in the ............ System, Length is Measured in Centimetres.

Advertisements
Advertisements

प्रश्न

Fill in the blank.

In the ............ system, length is measured in centimetres.

रिकाम्या जागा भरा
Advertisements

उत्तर

In the CGS system, length is measured in centimetres.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Physical Quantities and Measurement - Exercises 2

APPEARS IN

सेलिना Concise Physics [English] Class 6 ICSE
पाठ 2 Physical Quantities and Measurement
Exercises 2 | Q 2

संबंधित प्रश्‍न

Solve the numerical example.

When the planet Jupiter is at a distance of 824.7 million kilometers from the Earth, its angular diameter is measured to be 35.72'' of arc. Calculate the diameter of Jupiter.


Rulers, measuring tapes and metre scales are used to measure ______


Can you find the diameter of a thin wire of length 2 m using the ruler from your instrument box?


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.


Which line is longer? C or D? Measure each line. How good is your guess?


Difference in size
Do this for yourself and find the difference.


The fencing of a square garden is 20 m in length. How long is one side of the garden?


Can you think of how to cut a postcard so that you can pass through it?


In an experiment to estimate the size of a molecule of oleic acid 1 mL of oleic acid is dissolved in 19 mL of alcohol. Then 1 mL of this solution is diluted to 20 mL by adding alcohol. Now 1 drop of this diluted solution is placed on water in a shallow trough. The solution spreads over the surface of water forming one molecule thick layer. Now, lycopodium powder is sprinkled evenly over the film and its diameter is measured. Knowing the volume of the drop and area of the film we can calculate the thickness of the film which will give us the size of oleic acid molecule.

Read the passage carefully and answer the following questions:

  1. Why do we dissolve oleic acid in alcohol?
  2. What is the role of lycopodium powder?
  3. What would be the volume of oleic acid in each mL of solution prepared?
  4. How will you calculate the volume of n drops of this solution of oleic acid?
  5. What will be the volume of oleic acid in one drop of this solution?

One parsec is defined as ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×