EASY
9th West Bengal Board
IMPORTANT
Earn 100

What is the definition of standard metre in terms of wavelength of light?

Important Questions on Measurement

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?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 4.3.
What is a dimensional formula? What is its utility?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 4.4.
How the volume of a piece of stone can be measured by using a measuring cylinder?
EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 1 - Measurement>EXERCISE>Q 4.5.
When a balance is said to be accurate? Give reason.