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Exponents and Powers

Short Answer Type

51.

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

1 micron is equal to $1 over 1000000$ m.

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52.
Express the number appearing in the following statement in standard form.

Charge of an electron is 0.000,000,000,000,000,000, 16 coulomb.

∵ 0.000,000,000,000,000,000, 16

                               $equals 16 over 100000000000000000000$

                                $equals space fraction numerator 1.6 cross times 10 over denominator 10 to the power of 20 end fraction space equals space fraction numerator 1.6 over denominator 10 to the power of 19 end fraction space equals space 1.6 space cross times space 10 to the power of negative 19 end exponent$

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53.

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

Size of a bacteria is 0.0000005 m

285 Views

54.

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

Size of a plant cell is 0.00001275 m

93 Views

55.

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

Thickness of a thick paper is 0.07 mm.

94 Views

56.

In a stack there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack?

665 Views

57.

Write each of the following in standard form:

(i) 1,50,000,000,000 (ii) 0.000007

(iii) 0.0016 (iv) 0.00001278

297 Views

58.

The distance of the sun from the earth is 1,49,600,000,000 m. Express it in a standard form.

75 Views

59.

Express the following numbers in standard form:

(i) 0.00035 (ii) 4050000

462 Views

60.

Express the following numbers in usual form:

(i) $3.52 space cross times space 10 to the power of 5$ (ii) $7.54 space cross times space 10 to the power of negative 5 end exponent$ (iii) $3 space cross times space 10 to the power of negative 5 end exponent$