" (i) Eind the ofquare root of "6400" .(2) "

Find the square root of 6400.

Find the square root of 6400.

Find the square root of 6400.

The wavelength of a light is of the order of 6400 Å . Express this in micron and metre.

The wavelength of a light is of the order of 6400 Å . Express this in micron and metre.

If g on the surface of the earth is 9.8 m//s^(2) , find its value at a height of 6400 km. (Radius of the earth = 6400 km)

Find the compound interest on Rs. 6400 at 25% p.a for 3 years .