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In an expression a × 10^b;

b is order of magnitude for a ≤ 5

b is order of magnitude for a ≥ 5

a is order of magnitude for b ≤ 5

b is order of magnitude for 5 a ≤ 10

Mathematics in Physics

JEE Main level, single correct, medium

63 of 121

Question 63 of 121

In an expression $a \times 10^{\mathrm{b}}$ ;

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Answer: (B) $b$ is order of magnitude for $a \leq 5$

\begin{aligned} & a \times 10^b \\ & \text { if } a \leq 5 \text { order is } b \\ & a\gt 5 \text { order is } b+1\end{aligned}

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JEE Main Physics practice question on Mathematics in Physics (Errors of Measurement), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

In an expression a×10ba \times 10^{\mathrm{b}}a×10b;

JEE Main question paper PDF

More Physics practice

In an expression $a \times 10^{\mathrm{b}}$ ;