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Mathematics in Physics question bank (Physics)

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Q1.

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

(A)

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

(B)

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

(C)

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

(D)

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

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Q2.

A physical quantity $Q$ is found to depend on quantities $a, b, c$ by the relation $Q = \frac{a^{4} b^{3}}{c^{2}}$ . The percentage error in $a, b$ and $c$ are $3 %, 4 %$ and $5 %$ respectively. Then, the percentage error in $Q$ is:

(A)

66 %

(B)

43 %

(C)

34 %

(D)

14 %

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