please give me answer with explanation please
Answers
Step-by-step explanation:
Solutions :-
i)
Given that
The thickness of a rubber sheet us 0.00314 m
=> 314/100000 m
On multiplying both numerator and denominator with 100 then
=> (314/100000)×(100/100)
=> (314×100)/(100000×100)
=> (314/100)×(100/100000)
=> 3.14 × (100/100000)
=> 3.14 ×(1/1000)
=> 3.14 × 1(/10^3)
=> 3.14/10^3
=> 3.14×10^-3 m
The standard form of 0.00314 m = 3.14×10^-3 m
ii)
Given that
The size of an animal cell is 0.000075 m
=> 75/1000000
On multiplying both numerator and denominator with 10 then
=> (75/1000000)×(10/10)
=> (75/10)/(10/1000000)
=> 7.5×(1/100000)
=> 7.5×1/10^5 => 7.5×10^-5 m
The standard form of 0.000075 m is 7.5×10^-5 m
iii)
Given that
The size of a bacteria is 0.0000005 m
=> 5/10000000
=> 5/10^7
=> 5×10^-7 m
The standard form of 0.0000005 m is 5×10^-7 m