Question

(iii) 273000
(vi) 345 105
(111) 4.1253 x 107
(vi) 1.679x10'
1. Write each of the following numbers in standard form:
EXERCISE 2B
(1) 57.36
(iv) 168000000
(ii) 3500000
(v) 4630000000000
2. Write each of the following numbers in usual form:
(1) 3.74 x 105
(11) 6.912 x108
(iv) 2.5 x 10"
(v) 5.17 x 106
(1) The height of Mount Everest is 8848 m. Write it in standard form.
(in The speed of light is 300000000 m/sec. Express it in standard form.
(1) The distance from the earth to the sun is 149600000000 m. Write it in standard form.
4. Mass of earth is (5.97 x1024) kg and mass of moon is (7.35 x1022) kg. What is the total mass
of the two?
Hint. Total mass = [(5.97 102 x 1022 +(7.35 x 1022 kg
- 11597 x 1022) +(7.35 x 1022,1 kg = (597 +7.35)< 10221 kg.
5. Write each of the following numbers in standard form:
(1) 0.0006
(ii) 0.00000083
(iii) 0.0000000534
(iv) 0.0027
(v) 0.00000165
(vi) 0.00000000689
1
6. (1) 1 micron
m. Express it in standard form.
1000000
(ii) Size of a bacteria = 0.0000004 m. Express it in standard form.
(1) Thickness of a paper = 0.03 mm. Express it in standard fori.
7. Write each of the following numbers in usual form:
(1) 2.06 x 10
(i) 5x10-7
(iv) 5.673 x 104
(v) 1.8 x 10-2
(vi) 4.129 x10
(iii) 6.82 x 10-6
-3​

Answer 1

Answer:

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Answer 2

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