Physics, asked by ayaanMD20ilg, 9 months ago

What is the method to obtain derived unit of density

Answers

Answered by Anonymous
2

Answer:

see in attachment ..................

Attachments:
Answered by niishaa
1

Answer:

Density is a derived unit because it is defined in terms of other units.

Explanation:

Density is measured in

k

g

m

2

. This means that it is derived from fundamental units which are the kilogram and metre.

The kilogram is defined as the mass of a platinum-iridium cylinder which is kept in France. This is the only fundamental unit which is still defined by an artefact.

The second is defined at the time take for

9

,

192

,

631

,

770

transitions of a caesium 133 atom. The speed of light is defined to be exactly

299

,

792

,

458

m

s

1

. Now the metre is defined to be the distance light travels in

1

299

,

792

,

458

seconds.

hence the kilogram and the metre are SI units and density is a derived unit from these units.

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