Q.

Find out the S.I unit of density?


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a

gcm-3

b

gm-3

c

kgm-3

d

kgcm-3 

answer is D.

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Detailed Solution

Concept- Density of the body is defined as the mass per unit volume of the body.
Based on our knowledge, we know that the SI unit of mass is kg and that of volume is m3. So, according to the definition of density we see that density is the mass per unit volume of the body.
If we have to express it we will write it as:
D =  M V   So, the SI unit of density will be kgm-3.
Hence, option 4 is correct.
 
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