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Expressing Numbers in Standard Form

Question 3vEx...

Question

Question 3(v)
Express the number appearing in the following statements in standard form:
Thickness of a thick paper is 0.07 mm.

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Solution

$T h i c k n e s s o f a t h i c k p a p e r = 0.07 m m = \frac{7}{100} m m = \frac{7}{10^{2}} m m = 7 \times 10^{- 2} m m [∵ a^{- m} = \frac{1}{a^{m}}]$

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Similar questions

Q. Question 3(v)
Express the number appearing in the following statements in standard form:
Thickness of a thick paper is 0.07 mm.

Q. Express the number appearing in the following statements in standard form:
(i)

1

micron is equal to

\frac{1}{1000000}

m
(ii) charge of an electron is

0.000, 000, 000, 000, 000, 000, 16

coulomb
(iii) size of bacteria is

0.0000005

m
(iv) size of plant cell is

0.00001275

m
(v) Thickness of a thick paper is

0.07

Express the number appearing in the following statements in standard form.

(i) 1 micron is equal to m.

(ii) Charge of an electron is 0.000, 000, 000, 000, 000, 000, 16 coulomb.

(iii) Size of a bacteria is 0.0000005 m

(iv) Size of a plant cell is 0.00001275 m

(v) Thickness of a thick paper is 0.07 mm

Q. Thickness of a thick paper is

0.07

mm which in standard form is

7 \times 10^{- m}

m

Q. (i) 1 micron =

\frac{1}{1000000}

m. Express it in standard form.
(ii) Size of a bacteria = 0.0000004 m. Express it in standard form.
(iii) Thickness of a paper = 0.03 mm. Express it in standard form.

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Expressing Numbers in Standard Form

Standard VII Mathematics

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