Express the number appearing in the following statements in standard form.
a. the human eye blinks an average of `4,200,000` times a year.
b. The length of the blood vessels in a human body is `97,000,000` m.

Express the numbers appearing in the following statements in standard form. a) speed of light in vacuum is 3,00,000,000 m/s

Express the number appearing in the following statements in standard form. (i) 1 micron is equal to 1/(1000000)

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.(c) Diameter of the Earth is 1,27,56,000 m.(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.

Express the numbers appearing in the following statements in the standard form: The distance between the earth and the moon is 384,000,000 metres. Diameter of the earth is 1, 27 , 56 , 000 metres. Diameter of the sun is 1,400,000,000 metres. The universe is estimated to be about 12,000,000,000 years old.

Express the number appearing in the following statements in standard form: 1\ m i c ron\ i s\ e q u a l\ to1/(1000000)\ m e t r e . Charge of an electron is 0. 0000000000000000016\ coloumbs. S i z e\ of a bacteria is 0.0000005 metre. S i z e of a plant cell is 0.00001275 metre. Thickness of a normal paper is 0.07 mm.

Express the following numbers in the standard form: (i) 3908. 78 (ii) 5,00,00,000

Express the following complex numbers in the standard form a+i b :(3-4i)/((4-2i)(1+i))

Express the following numbers in the standard form: (i) 5985.3 (ii) 65,950 (iii) 3,430,000 (iv) 70,040,000,000

Which of the following length measurements is most precise and why? (a) 2.0 cm , (b) 2.00 cm , ( c ) 2.000 cm

Express the following complex numbers in the standard form a+i b :(1/(1-4i)-2/(1+i))((3-4i)/(5+i))