Assertion: In centimeter the spelling meter is internationally accepted.
Reason: Metre is internationally used unit whereas meter is used by Americans.

The system of units which at present Internationally accepted for measurement is the SI units.What is the full form of SI?

Which material is used for the meter bridge wire and why ?

Assertion : For the extraction of iron, haematite are is used. Reason : Haematite is a carbonate are is used

Assertion: Fahrenheit is the smallest unit to measure temperature. Reason: Fahrenheit was the first temperature scale used for measuring temperature.

The system of units which at present Internationally accepted for measurement is the SI units.The initial and final temperature of water in a container are observed as 15 ± 0.5 ^@C and 40 ± 0.2 ^@C . What is the rise in the temperature?

Name the alloy used for making meter scales. Give reason.

Assertion :- Unit vector is used to describe a direction in space. Reason :- Unit vector has a unit through its magnitude is one.