Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

The potential energy function for the force between two atoms in a diatomic molecule is approximately given by U(x) = (a/x^12) – (b/x^6), where a and b are constants and x is the distance The potential energy function for the force between two atoms in a diatomic molecule is approximately given by U(x) = (a/x^12) [...]

If a source of power 4 KW produces 10^20 photons per second, the radiation belongs to a part of the spectrum called If a source of power 4 KW produces 10^20 photons per second the radiation belongs to a part of the spectrum called October 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

This question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements. Statement 1: when ultraviolet light is incident on a photocell, its stopping choose the one that best describes the two statements. Statement 1: when ultraviolet light is incident on a [...]

The surface of a metal is illuminated with a light of wavelength 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is The surface of a metal is illuminated with a light of wavelength 400 nm. The kinetic energy of the ejected photoelectrons [...]

A cylindrical rod of some laser material 5 * 10^-2 m long and 10^-2 m in diameter contains 2 * 10^25 ions per m^3. If on excitation all the ions are in the upper energy level and A cylindrical rod of some laser material 5 * 10^-2 m long and 10^-2 m in diameter contains [...]

What amount of energy (in eV) should be added to an electron to reduce its de-Broglie wavelength from 100 to 50 pm? What amount of energy (in eV) should be added to an electron to reduce its de-Broglie wavelength from 100 to 50 pm? October 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

Calculate de-Broglie wavelength ( in A) for an average helium atom in a furnance at 400 K. Given mass of helium = 4.002 amu. Calculate de-Broglie wavelength ( in A) for an average helium atom in a furnance at 400 K. Given mass of helium = 4.002 amu. October 14, 2020 Category: Uncategorised (JEE Advanced [...]

Light of wavelength 180 nm ejects photoelectrons from a plate of a metal whose work function is 2 eV. If a uniform magnetic field of 5 * 10^-5 T is applied to the plate, what would Light of wavelength 180 nm ejects photoelectrons from a plate of a metal whose work function is 2 eV. [...]

A plane light wave of intensity I = 0.20 W/cm^2 falls on a plane mirror surface with reflection coefficient rho= 0.8. The angle of incidence id 45. In terms of corpuscular theory, A plane light wave of intensity I = 0.20 W/cm^2 falls on a plane mirror surface with reflection coefficient rho= 0.8. The angle [...]

Photons of energy 5 eV are incident on the cathode. Electrons reaching and anode have kinetic energies varying from 6 eV to 8 eV Find the work function of the metal ( in eV). Photons of energy 5 eV are incident on the cathode. Electrons reaching and anode have kinetic energies varying from 6 eV [...]