State the number of significant figures in the following :

(a) 0.007 m2

(b) 2.64 × 1024 kg

(c) 0.2370 g cm–3

(d) 6.320 J

(e) 6.032 N m–2

(f) 0.0006032 m2

Asked by Abhisek | 1 year ago |  69

1 Answer

Solution :-

(a) 0.007 m2

The given value is 0.007 m2.

Only one significant digit. It is 7

 

(b) 2.64 × 1024 kg

The value is 2.64 × 1024 kg

For the determination of significant values, the power of 10 is irrelevant. 

The digits 2, 6, and 4 are significant figures. The number of significant digits is 3.

 

(c) 0.2370 g cm–3

The value is 0.2370 g cm–3

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

The 0 before the decimal point is not significant

 

(d) All the numbers are significant. The number of significant figures here is 4.

 

(e) 6, 0, 3, 2 are significant figures. Therefore, the number of significant figures is 4.

 

(f) 6, 0, 3, 2 are significant figures. The number of significant figures is 4.

Answered by Pragya Singh | 1 year ago

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