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Q.

The radius of a hydrogen atom is 5.29×10−11m and that of a proton is  1.5×10−15m The ratio of the radius of atom to the radius of proton in the scientific notation will be

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a

3.5×104

b

35.266×103

c

3.5266667×103

d

3.526×104

answer is C.

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Detailed Solution

5.29×10−11m1.5×10−15m=3.5×104 (Result will carry 2 significant digits.)

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