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How do you write 0.0001 in scientific notation?

Answer
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Hint: For solving this question we need to convert(write) given numbers into the scientific notation. In scientific notation, we write a number so that it has a single digit to the left of the decimal sign and is multiplied by an integer power of 10 .

Complete step-by-step answer:
Note that moving decimal p digits to right is equivalent to multiplying by 10p and moving decimal q digits to left is equivalent to dividing by 10q .
Hence, we should either divide the number by 10p i.e. multiply by 10p (if moving decimal to right) or multiply the number by 10p (if moving decimal to left).
In other words, it is written as a×10n , where 1a<10 and n is an integer.
To write 0.0001 in scientific notation, we will have to move the decimal point four points to right, which literally means multiplying by 104 .
Hence in scientific notation 0.0001=1.0×104 (note that as we have moved decimal one point to right we are multiplying by 104 .

Note: A short way of changing scientific notation is to move the decimal point until there is only one (non-zero) digit to the left of the point. The number of places moved is the index. Point moves to the right, the index decreases and if Point moves to the left, the index increases.

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