Q.1. Write the following numbers in Scientific Notation 
(i) 134.7 (ii) 0.0023(ii) 43.948102


Scientific Notation: 

... 

A Standard form to represent very big or very small numbers using the power of ten is called Scientific notation. 

It is done by converting the number in terms of some power of ten (10) multiplied by a number that lies between 1 and 10 (called Mantissa) (i.e. one non-zero digit should be written at the left side of the decimal point.)

Example: The number of molecules in one mole is 602,300,000,000,000,000,000,000 (larger value) and can be represented in scientific notation as 6.023 x 10²³. Similarly, for smaller values let the radius of the hydrogen atom (0.000,000,000,053 m) = 5.3 x 10⁻¹¹ m

Solution:  

(1) 134.7 = 1.347 x 10² --------Ans.

(ii) 0.0023 = 2.3 x 10⁻³ --------Ans.

(iii) 43.948102 = 4.395 x 10¹ --------Ans.


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