Express the numbers appearing in the following statements in the standard form:
(i) The distance between the Earth and the Moon is 384,000,000 metres.
(ii) Diameter of the Earth is 1,27,56,000 metres.
(iii) Diameter of the Sun is 1,400,000,000 metres.
(iv) The universe is estimated to be about 12,000,000,000 years old.

Open in App

Solution

We have
(i) The distance between the Earth and the Moon is 3.84 x 10⁸ metres.
[Since the decimal point is moved 8 places to the left.]

(ii) The diameter of the Earth is 1.2756 x 10⁷ metres.
[Since the decimal point is moved 7 places to the left.]

(iii) The diameter of the Sun is 1.4 x 10⁹ metres.
[Since the decimal point is moved 9 places to the left.]

(iv) The universe is estimated to be about 1.2x 10¹⁰ years old.
[Since the decimal point is moved 10 places to the left.]

Suggest Corrections

Similar questions

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

(a) The distance between Earth and Moon is 384, 000, 000 m.

(b) Speed of light in vacuum is 300, 000, 000 m/s.

(d) Diameter of the Sun is 1, 400, 000, 000 m.

(e) In a galaxy there are on an average 100, 000, 000, 000 stars.

(f) The universe is estimated to be about 12, 000, 000, 000 years old.

(g) The distance of the Sun from the centre of the Milky Way Galaxy is estimated to be 300, 000, 000, 000, 000, 000, 000 m.

(h) 60, 230, 000, 000, 000, 000, 000, 000 molecules are contained in a drop of water weighing 1.8 gm.

(i) The earth has 1, 353, 000, 000 cubic km of sea water.

(j) The population of India was about 1, 027, 000, 000 in March, 2001.

12, 000, 000, 000

Join BYJU'S Learning Program