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Suppose a pure Si crystal has 5 * 10^28 atoms/m^3 at room temperature. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes.
12
Sep
Suppose a pure Si crystal has 5 * 10^28 atoms/m^3 at room temperature. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes. Suppose a pure Si crystal has 5 * 10^28 atoms/m^3 at room temperature. It is doped by 1 ppm concentration of pentavalent As. Calculate the [...]
A semiconductor object has acceptor energy levels 54 meV (millielectron volt) above the valence band. Find the maximum wavelength of the radiation, which can create a hole?
12
Sep
A semiconductor object has acceptor energy levels 54 meV (millielectron volt) above the valence band. Find the maximum wavelength of the radiation, which can create a hole? A semiconductor object has acceptor energy levels 54 meV (millielectron volt) above the valence band. Find the maximum wavelength of the radiation which can create a hole? September [...]
Find the maximum wavelength of electromagnetic radiation, which can create a hole-electron pair in germanium. Given that forbidden energy gap in germanium is 0.72 eV.
12
Sep
Find the maximum wavelength of electromagnetic radiation, which can create a hole-electron pair in germanium. Given that forbidden energy gap in germanium is 0.72 eV. Find the maximum wavelength of electromagnetic radiation which can create a hole-electron pair in germanium. Given that forbidden energy gap in germanium is 0.72 eV. September 12, 2020 Category: Uncategorised [...]
Write the decay equations and expressions for the disintegration energy Q of the following decay: beta – decay, beta + decay, electron capture.
12
Sep
Write the decay equations and expressions for the disintegration energy Q of the following decay: beta – decay, beta + decay, electron capture. beta + decay electron capture. Write the decay equations and expressions for the disintegration energy Q of the following decay: beta - decay September 12, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
In Young’s double slit experiment how many maximas can be obtained on a screen (including the central maximum) on both sides of the central fringe if λ = 2000 Å and d = 7000 Å
12
Sep
In Young’s double slit experiment how many maximas can be obtained on a screen (including the central maximum) on both sides of the central fringe if λ = 2000 Å and d = 7000 Å In Young's double slit experiment how many maximas can be obtained on a screen (including the central maximum) on both [...]
(a) Find the energy needed to remove a neutron from the nucleus of the calcium isotope 42Ca20. (b) Find the energy needed to remove a proton from this nucleus. (c) Why are these energies different?
12
Sep
(a) Find the energy needed to remove a neutron from the nucleus of the calcium isotope 42Ca20. (b) Find the energy needed to remove a proton from this nucleus. (c) Why are these energies different? (a) Find the energy needed to remove a neutron from the nucleus of the calcium isotope 42Ca20. (b) Find the [...]
In a Young’s double slit experiment, the separation between the two slits is d and the wavelength of the light is λ. The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose the correct choice (s).
12
Sep
In a Young’s double slit experiment, the separation between the two slits is d and the wavelength of the light is λ. The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose the correct choice (s). fringes are obtained on a screen placed at some [...]
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fringes are obtained on a screen placed at some distance from the slits. If the screen is moved by 5 x 10^-2 m towards the slits ,
In a two -slit experiment with monochromatic light ,
In a Young's double slit experiment ,
the change in fringe width is 3 x 10^-5 m. If seperation between the slits is 10^-3 m ,
the wavelength of light used is ,
In a Young’s double slit experimental arrangement shown here, if a mica sheet of thickness t and refractive indec μ is placed in front of the slit S1, then the path difference (S1P−S2P) is
12
Sep
In a Young’s double slit experimental arrangement shown here, if a mica sheet of thickness t and refractive indec μ is placed in front of the slit S1, then the path difference (S1P−S2P) is if a mica sheet of thickness t and refractive indec μ is placed in front of the slit S1 In a [...]
Consider a body at rest in the L-frame, which explodes into two fragments of masses m1 and m2. Calculate energies of the fragments of the body.
12
Sep
Consider a body at rest in the L-frame, which explodes into two fragments of masses m1 and m2. Calculate energies of the fragments of the body. Consider a body at rest in the L-frame which explodes into two fragments fo masses m1 and m2. Calculate energies of the fragments of the body. September 12, 2020 [...]
In young’s experiment the monochromatic light is used to illuminate two slits A and B as shown in figure. Interference fringes are observed on a screen placed in front of the slits.
12
Sep
In young’s experiment the monochromatic light is used to illuminate two slits A and B as shown in figure. Interference fringes are observed on a screen placed in front of the slits. In young's experiment the monochromatic light is used to illuminate two slits A and B as shown in figure. Interference fringes are observed [...]