perfect number

If K is not a perfect nth power of any number, then is called a surd of the n t h order. A surd is always an irrational number..

Surd - If K is not a perfect nth power of any number, then is called a surd of the n t h order. e.g., is a surd of the third order. is a surd of the second order. A surd is always an irrational number..

Which number is not a perfect square? => 9 or 16 or 36 or 11..

The units place of a 3 digit number is the square of the first odd prime number and the digit in the 10's place is the square root of a perfect square between 35 and 44. What is the 3 digit number if it is a perfect square? => 169 or 196 or 256 or 1..

The formula x = p + x - p 2 2 p + 1 is used to approximate the square root of a number x , where p is the square root of the nearest perfect square less than x . Use the equation to find 8 5 . => 18.211 or 10.211 or 7.211 or 9.211..

All the molecules of a gas are identical with respect to their shape and mass. The molecules of different gases are different. The gas molecules behave as rigid, elastic and smooth spheres. The size of gas molecules is very less when compared to the intermolecular distance between them. The..

. This difficulty is often overcome in high-fidelity systems by employing two speakers, a cone and baffle to provide the low frequencies up to possibly 1,000 cycle to 1,600 cycle, and a small high frequency horn to carry the frequencies above. The amplifier output is divided into two frequency rang..

A body that is a good radiator (or emitter) is also a good absorber. To understand this, suppose isotropic (i.e., equal in all directions) thermal radiation is incident on a body. Let a be the fraction of the total thermal radiation of all wavelengths absorbed by the body. The remaining fraction is..

A stable and self sufficient community has certain specific characteristics. a) Habitat Biotic community occupies particular area with specific physical environment, which acts as a limiting factor, regulating the population size of various species within the community. b) Self sufficiency Nutritio..

All gases are made up of large number of minute particles called molecules. Large distances separate the molecules so that the actual volume of the molecules is negligible as compared to the total volume of the gas. The molecules are in a state of constant rapid motion in all dire..