In an expression a × 10b:

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Solution

Q.
In an expression $a \times 10^{b}$ :

1 $a$ is order of magnitude for $b \leq 5$

2 $b$ is order of magnitude for $a \leq 5$

3 $b$ is order of magnitude for $5 < a \leq 10$

4 $b$ is order of magnitude for $a \geq 5$

Ans.
(2)

$a \times 10^{b}$

$If a > 5 order is b$

$a > 5 order is b + 1$

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