Theory of reltivity reveals that mass can be converted into energy. The energy E so obtained is proportional to certain powers of mass m and the speed c of light. Guess a relation among the quantities using the method of dimensions.

If E=mc^(2) wher m= mass of the body c= speed of light Guess the name of physical quantity E .

When a solid moves therough a liquid, the liquid opposes the miotioon with a force F. The magnitude of F depends on the coefficient of viscosity eta of the liquid, the radius r of the sphere aknd the speed v of the sphere. Assuming that F is proportional to different powers of these quantities, guess a formula for F using the method of dimension.

When a solid moves therough a liquid, the liquid opposes the miotioon with a force F. The magnitude of F depends on the coefficient of viscosity eta of the liquid, the radius r of the sphere aknd the speed v of the sphere. Assuming that F is proportional to different powers of these quantities, guess a formula for F using the method of dimension.

When a solid moves through a liquid, the liquid opposes the motion with a force F. The magnitude of F depends on the coefficient of viscosity eta of the liquid, the radius r of the sphere and the speed v of the sphere. Assuming that F is proportional to different powers of these quantities, guess a formula for F using the method of dimension.

The speed of transverse wave v in a stretched string depend on length tension T in the string and liner mass density (mass per unit length). mu . Find the relation using method of dimensions.

According to Einstein's theory of relativity, mass can be converted into energy and vice-versa. The lightest elementary partical, taken to be the electron, has a mass equivalent to 0.51 MeV of energ. Then, we can say that

According to Einstein's theory of relativity, mass can be converted into energy and vice-versa. The lightest elementary partical, taken to be the electron, has a mass equivalent to 0.51 MeV of energ. Then, we can say that

If m is the mass of an electron and c the speed of light, the ratio of the wavelength of a photon of energy E to that of the electron of the same energy is