ICSE Class 9: Systems of Unit and Units in SI System Videos | Measurements and Experimentation

• how is a physical quantity expressed?
• Good evening ma'am . My doubt in chapter 1 Measurements and Experimentation . What do you mean by the words ambiguity and not reproductible for choice of units ?
• name the convenient unit you will use to measure the thickness of a wire
• How is the S.I. unit of accleration due to gravity  N/m?
• what is si
• Good evening mam,mam can you explain this topic need of unit for measurement
• numericals of 2 ch
• What is measurements    
• numericals in 1st chapter evergreen book
• What is vector and scalar quantity?  

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