Q3 of 55 Page 36

The speed of light is 300000000 m/sec. express it in standard form.

Speed of the light = 300000000 m/sec


In standard for we will get,


300000000 = 3 × 100000000 m/sec = 3 × 108 m/sec


More from this chapter

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2

Write each of the following numbers in usual form:

(i) 3.74 × 105


(ii) 6.912 × 108


(iii) 4.1253 × 107


(iv) 2.5 × 104


(v) 5.17 × 108


(vi) 1.679 × 109

 3

The height of Mount Everest is 8848 m. Write it in standard form.

 3

The distance from the earth to the sun is 149600000000 m. Write it in standard form.

 4

Mass of earth is (5.97 x 1024) kg and mass of moon is (7.35 x 1022) kg. What is the total mass of the two?