Question
Define one metre, the S.I. unit of length. State it's one multiple and one submultiple.
✓
Answer
One metre is defined as the distance travelled by light in the air in $\frac{1}{299,792,458}$ of a second
Multiple of metre $=$ Kilometre
Submultiple of metre $=$ Centimetre
Multiple of metre $=$ Kilometre
Submultiple of metre $=$ Centimetre
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Magnets must be handled with care.
When are approximations necessary in daily life and when should they be avoided ?
State two ways of increasing friction between two surfaces.
Explain the various energy transformations that take place when you run the engine of a car.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
a see-saw.
State three characteristics of molecules of matter.
State four uses of magnets/electromagnets.
Explain in detail why railways and airlines use the 24- hour clock format.
What are renewable sources of energy ? Give two examples.