Question

(i) How many numbers of significant figures are in 0.007 m²
(A) 4 (B) 3 (C) 2
(D) 1​

Answer 1

the answer is d is your answer

Answer 2

Concept introduction:

 The number of significant single digits in the coefficient of an expression in scientific notation is referred to as significant figures. The number of digits in a formula reflects how confident or precise an engineer or scientist is when expressing a quantity.

Given:

Here the term is given to us is $0.007 m^{2}$.

To find:

We have to find how many numbers of significant figures are in $0.007 m^{2}$.

Solution:

According to the question,

There are only one significant figure in that number.

Because after the point there are only one no zero number.

Final answer:

Hence the final answer of the question is -> (D) 1​.

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