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Two hydrogen-like atoms A and B are of different masses and each atom contains equal numbers of protons and neutrons. The difference in the energies between the first Balmer lines emitted by A and B,
11
Sep
Two hydrogen-like atoms A and B are of different masses and each atom contains equal numbers of protons and neutrons. The difference in the energies between the first Balmer lines emitted by A and B, Two hydrogen-like atoms A and B are of different masses and each atom contains equal numbers of protons and neutrons. [...]
Light from a discharge tube containing hydrogen atoms falls on the surface of a piece of sodium. The kinetic energy of fastest photoelectrons emitted from sodium is 0.73 eV. The work function for sodium is 1.82 eV.
11
Sep
Light from a discharge tube containing hydrogen atoms falls on the surface of a piece of sodium. The kinetic energy of fastest photoelectrons emitted from sodium is 0.73 eV. The work function for sodium is 1.82 eV. The wavelength of the characteristic X-ray K alpha line emitted by a hydrogen-like element is 0.32 A. Calculate [...]
The wavelength of the characteristic X-ray K alpha line emitted by a hydrogen-like element is 0.32 A. Calculate the wavelength of K beta line emitted by the same element.
11
Sep
The wavelength of the characteristic X-ray K alpha line emitted by a hydrogen-like element is 0.32 A. Calculate the wavelength of K beta line emitted by the same element. The wavelength of the characteristic X-ray K alpha line emitted by a hydrogen-like element is 0.32 A. Calculate the wavelength of K beta line emitted by [...]
A gas of identical hydrogen-like atoms has some atoms in the lowest (ground) energy level A and some atoms in a particular upper (excited) energy level B and there are no atoms in any other energy level.
11
Sep
A gas of identical hydrogen-like atoms has some atoms in the lowest (ground) energy level A and some atoms in a particular upper (excited) energy level B and there are no atoms in any other energy level. A muon is an unstable elementary particle whose mass is 20 me and whose charge is either +e [...]
Hydrogen atom in its ground state is excited by means of monochromic radiation of wavelength 975 A. How many different lines are possible in the resulting spectrum? Calculate the
11
Sep
Hydrogen atom in its ground state is excited by means of monochromic radiation of wavelength 975 A. How many different lines are possible in the resulting spectrum? Calculate the Hydrogen atom in its ground state is excited by means of monochromic radiation of wavelength 975 A. How many different lines are possible in the resulting [...]
A force gives an object of m1 an acceleration of 12 metre per second square and an object of mass m2 an acceleration of 3 metre per second square. the ratio of acceleration if the force give object of mass m2 – m1 and m2 + m1 is
11
Sep
A force gives an object of m1 an acceleration of 12 metre per second square and an object of mass m2 an acceleration of 3 metre per second square. the ratio of acceleration if the force give object of mass m2 – m1 and m2 + m1 is A body of mass 50 kg is [...]
An electron having energy 100 eV collides with a stationary helium ion (He) in its ground state and excites to a higher level. After the collision, He ions emits two photons in succession with wavelength 1085
11
Sep
An electron having energy 100 eV collides with a stationary helium ion (He) in its ground state and excites to a higher level. After the collision, He ions emits two photons in succession with wavelength 1085 An electron having energy 100 eV collides with a stationary helium ion (He) in its ground state and excites [...]
Figure shows (x,t) (y,t) diagram of a particle moving in 2 dimensions. If the particle has a mass of 500 g, the force acting on the particle is
11
Sep
Figure shows (x,t) (y,t) diagram of a particle moving in 2 dimensions. If the particle has a mass of 500 g, the force acting on the particle is Figure shows (x t) (y t) diagram of a particle moving in 2 dimensions. If the particle has a mass of 500 g the force acting on [...]
A hydrogen atom moves with a velocity u, and makes a head on inelastic collision with a similar hydrogen atom at rest. Both the atoms are in the ground state before collision. What is the minimum value of u, if one of them is to be given a minimum
11
Sep
A hydrogen atom moves with a velocity u, and makes a head on inelastic collision with a similar hydrogen atom at rest. Both the atoms are in the ground state before collision. What is the minimum value of u, if one of them is to be given a minimum A hydrogen atom moves with a [...]
A block of mass 2 kg is placed on the floor. The coefficient of static friction is μs=0.54. If a force of 2.8 N is applied on the block parallel to the floor, the force of friction between the block and floor (taking g=10m/sec2)
11
Sep
A block of mass 2 kg is placed on the floor. The coefficient of static friction is μs=0.54. If a force of 2.8 N is applied on the block parallel to the floor, the force of friction between the block and floor (taking g=10m/sec2) A block of mass 2 kg is placed on the floor. [...]