Question

The number of significant figures in 3.04 × 1023 are a) 2 b) 3 c) 23 d) 25​

Answer 1

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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Answer 2

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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