# Q 2.10: State the number of significant figures in the following : (a) (b) (c) (d) (e) (f)

(a) The given value is .

Since, the number is less than 1, the zeros on the right to the decimal before the first non-zero integer is insignificant. So, the number 7 is the only significant digit.

It has 1 significant digit.

(b) The value is

For the determination of significant values, we do not consider the power of 10 (Number is not less than 1). The digits 2, 6, and 4 are significant figures.

It has 3 significant digits.

(c)The value is .

For the given value with decimals, all the numbers 2, 3, 7 and 0 are significant.

It has 4 significant digits.

(d) The value is .

It has 4 significant digits.

(e)  The value is .

All the four digits are significant as the zeros in between two non-zero values are also significant.

It has 4 significant digits.

(f) The value is

Same as (a), first three zeroes after the decimal is insignificant. Only 6, 0, 3, 2 are significant.

It has 4 significant digits.

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