please answer with reason tomorrow is my test !!!!!!
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The Correct Option is 4×10¹ (4)TH option.
As this is represented in Scientific Notation...
It Clearly Displays that This measurement has only 1 Significant digits No matter in Whuch ever derived unit The measurement is represented...
Like in Km =4×10¹ ×10^(-3)=4×10^(-2)Km
Or mm =4×10²mm
As for(1) 40m ...
Here 1 Significant Figures...
But
when this is represented in Km=0.04Km gives 2 Significant Figures...
As this is represented in Scientific Notation...
It Clearly Displays that This measurement has only 1 Significant digits No matter in Whuch ever derived unit The measurement is represented...
Like in Km =4×10¹ ×10^(-3)=4×10^(-2)Km
Or mm =4×10²mm
As for(1) 40m ...
Here 1 Significant Figures...
But
when this is represented in Km=0.04Km gives 2 Significant Figures...
kriti92:
but correct opt is 3
hmmm Let me see...
Yes... It Is (3)... Sorry about That....
well (3) and (4) is correct... But The third.. Gives More Accuracy about The Correct no of significant digits...
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