Velocity of light is `30,000,000,000 cm//sec`. Its value by using powers of 10 is ______

When we express the velocity of light 30,00,00,000 in standard form up to three significant fogures it is

When we express the velocity of light 30,00,00,000 in standard form up to three significant fogures it is

Calculate 30% of ? 630,000.

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 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.

What is the ratio of velocities of light rays of wavelength 5,000 overset @ A and 7,000 overset @A in vacuum?

Find the value of : 10,000-:1,000+100-:10=?

A, B and C start a business with the capical of ₨. 6,000, ₨. 8,000 and ₨. 9,000 respectively. After few months A invests ₨. 3,000 more in the business. At the end of the year they gained ₨. 30,000 and C got ₨. 10,800 as share of profit. When did A invest ₨. 3,000 more?