Subscribe to:
Post Comments (Atom)
Class 9 heat revision questions
Second term weekly test revision questions Q1.a) what do you mean by degradation of energy? b) why a person should use bio- char stoves for...
-
☆ physical quantity- • A quantity that can be measured is called a physical quantity. Or a measurable quantity is called a physical quan...
-
*Physical quantities- - A quantity thĂș㎲at can be measured is called a physical quantity. -example mass, length, time, temperature, area, v...
-
1. Define the term density of substance. Ans. Mass per unit of a substance is called as its density. 2. Name the SI unit of density. How i...
No comments:
Post a Comment
Thanks