EASY
9th West Bengal Board
IMPORTANT
Earn 100

What are the units of area and volume in CGS and SI system.

Important Questions on Measurement

EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.3.
What is a unit less quantity? Give an example.
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.4.
What are the dimensional formulae of density and momentum?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.5.
What is the definition of standard metre in terms of wavelength of light?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.6.
What is light year? How it is related with kilometre?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.7.
What are the requisites of a common balance to be sensitive?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 3.8.
What are the limitations of using an ordinary metre scale?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 4.1.
What is a unit? Give examples of some standards used by ancient men.
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 4.2.
What are fundamental units? Give examples. Why they are called so?