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A muon is an unstable elementary particle whose mass is 20 me and whose charge is either +e or -e. A negative muon can be captured by a nucleus to form a muonic atom. Suppose a proton
11
Sep
A muon is an unstable elementary particle whose mass is 20 me and whose charge is either +e or -e. A negative muon can be captured by a nucleus to form a muonic atom. Suppose a proton A muon is an unstable elementary particle whose mass is 20 me and whose charge is either +e [...]
The energy of an electron in an excited hydrogen atom is -3.4 eV. Calculate the angular momentum of the electron according to Bohr’s theory.
11
Sep
The energy of an electron in an excited hydrogen atom is -3.4 eV. Calculate the angular momentum of the electron according to Bohr’s theory. The energy of an electron in an excited hydrogen atom is -3.4 eV. Calculate the angular momentum of the electron according to Bohr's theory. September 11, 2020 Category: Uncategorised (JEE Advanced [...]
A doubly ionized lithium atom is hydrogen-like with atomic number 3. (a) Find the wavelength of the radiation required to excite the electron in Li from the first to third Bohr orbit (ionization energy of hydrogen equals 13.6 eV).
11
Sep
A doubly ionized lithium atom is hydrogen-like with atomic number 3. (a) Find the wavelength of the radiation required to excite the electron in Li from the first to third Bohr orbit (ionization energy of hydrogen equals 13.6 eV). Compare Z1 and Z2. September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + [...]
The ionization energy of a hydrogen-like Bohr atom is 4 rydbergs. (a) What is the wavelength of radiation emitted when the electron jumps from the first excited state to the ground state? (b) What is the radius of the first orbit for this atom?
11
Sep
The ionization energy of a hydrogen-like Bohr atom is 4 rydbergs. (a) What is the wavelength of radiation emitted when the electron jumps from the first excited state to the ground state? (b) What is the radius of the first orbit for this atom? Compare Z1 and Z2. September 11, 2020 Category: Uncategorised (JEE Advanced [...]
The rear side of a truck is open and a box of 40kg mass is placed 5m away from the open end as shown in the figure. The coefficient of friction between the box and the surface below it is 0.15. On a straight road, the truck starts from rest and accelerates with 2ms−2. Find the distance (in m) traveled by truck by the time box falls from the truck. (Ignore the size of the box)
11
Sep
The rear side of a truck is open and a box of 40kg mass is placed 5m away from the open end as shown in the figure. The coefficient of friction between the box and the surface below it is 0.15. On a straight road, the truck starts from rest and accelerates with 2ms−2. Find [...]
A block of mass 200 kg is being pulled up by men on an inclined plane at angle of 45 degree the coefficient of static friction is 0.5 each man can only apply maximum force of 500N. Calculate the number of men required fir the block to just start moving up the plane
11
Sep
A block of mass 200 kg is being pulled up by men on an inclined plane at angle of 45 degree the coefficient of static friction is 0.5 each man can only apply maximum force of 500N. Calculate the number of men required fir the block to just start moving up the plane 2 N [...]
A single electron orbits around a stationary nucleus of charge +Ze, where Z is a constant and e is the magnitude of the electronic charge. It requires 47,2 eV to excite the electron from the second Bohr orbit to the third
11
Sep
A single electron orbits around a stationary nucleus of charge +Ze, where Z is a constant and e is the magnitude of the electronic charge. It requires 47,2 eV to excite the electron from the second Bohr orbit to the third 2 eV to excite the electron from the second Bohr orbit to the third [...]
Block A of mass 2 kg is placed over a block B of mass 8 kg. The combination is placed on a rough horizontal surface. If g = 10 ms^−2, coefficient of friction between B and floor = 0.5, coefficient of friction between A and B = 0.4 and a horizontal force of 10 N is applied on block B, then the force of friction between A and B is
11
Sep
Block A of mass 2 kg is placed over a block B of mass 8 kg. The combination is placed on a rough horizontal surface. If g = 10 ms^−2, coefficient of friction between B and floor = 0.5, coefficient of friction between A and B = 0.4 and a horizontal force of 10 N [...]
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Block A of mass 2 kg is placed over a block B of mass 8 kg. The combination is placed on a rough horizontal surface. If g = 10 ms^−2 ,
coefficient of friction between A and B = 0.4 and a horizontal force of 10 N is applied on block B ,
coefficient of friction between B and floor = 0.5 ,
then the force of friction between A and B is ,
A cubical block rests on an inclined plane of μ = 1/√3, What should be the angle of inclination so that the block just slides down the inclined plane?
11
Sep
A cubical block rests on an inclined plane of μ = 1/√3, What should be the angle of inclination so that the block just slides down the inclined plane? A cubical block rests on an inclined plane of μ = 1/√3 What should be the angle of inclination so that the block just slides down [...]
A box of mass 2 kg is placed on the roof of a car. The box would remain stationary until the car attains a maximum acceleration. Coefficient of static friction between the box and the roof of the car is 0.2 and 1g=10 ms^−2. The maximum acceleration of the car, for the box to remain stationary, is
11
Sep
A box of mass 2 kg is placed on the roof of a car. The box would remain stationary until the car attains a maximum acceleration. Coefficient of static friction between the box and the roof of the car is 0.2 and 1g=10 ms^−2. The maximum acceleration of the car, for the box to remain [...]