Physics

In a region, the potential is represented by V(x,y,z)=6x-8xy-8y+6yz, where V

In a region, the potential is represented by V(x,y,z)=6x-8xy-8y+6yz, where V is in volts and x,y,z are in metres. The…

If the kinetic energy of the particle is increased to 16 times its previous value

If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the…

If the focal length of objective lens is increased, then magnifying power of

If the focal length of objective lens is increased, then magnifying power of Options (a) microscope will increase but that…

If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string

If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string is divided, then the…

Hydrogen atom in ground state is excited by a monochrmatic radiation of λ=975 Å

Hydrogen atom in ground state is excited by a monochrmatic radiation of λ=975 Å. Number of spectral lines in the…

Following figures show the arrangement of bar magnets in different configurations

Following figures show the arrangement of bar magnets in different configurations. Each magnet has magnetic dipole moment m. Which configuration…

Dependence of intensity of gravitational field (E) of earth with distance(r)

Dependence of intensity of gravitational field (E) of earth with distance(r) from centre of earth is correctly represented by Options…

Copper of fixed volume V is drawn into wire of length l. When this wire is subjected

Copper of fixed volume V is drawn into wire of length l. When this wire is subjected to a constant…

Certain quantity of water cools from 70⁰ C to 60⁰C in the first 5 minutes and to 54⁰C

Certain quantity of water cools from 70⁰ C to 60⁰C in the first 5 minutes and to 54⁰ C in…

A transformer having efficiency of 90% is working on 200 V and 3kW power supply

A transformer having efficiency of 90% is working on 200 V and 3kW power supply. If the current in the…