The number of significant figures in 3.04 × 1023 are a) 2 b) 3 c) 23 d) 25
Answers
Correct Question :-
The number of significant figures in 3.04 × 10²³ are a) 2 b) 3 c) 23 d) 25.
Answer :-
- b) 3
Step by step explanation :-
When numbers are written in scientific notation, then the number of digits between 1 and 10 gives the number of significant figures.
Thus, the number 3.04 × 10²³ contains 3 significant figures.
All the three digits (3,0 and 4) are significant.
Hence, option B is correct.
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SOLUTION
TO CHOOSE THE CORRECT OPTION
The number of significant figures in 3.04 × 10²³ are
a) 2
b) 3
c) 23
d) 25
EVALUATION
We know that the figures that are used in representing a number are called significant figures
Here the given number is 3.04 × 10²³
If 0 is the leading zero then it used to fix the position of the decimal point . It is not considered as significant figures
But since 0 is between 3 and 4
So here 0 is also a significant figure
The significant figures are 3 , 0 , 4
Therefore number of significant figures = 3
FINAL ANSWER
Hence the correct option is b) 3
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