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What is the minimum photon energy required to remove the least bound neutron of 40 Ca 20 and 40 Ar 18? The necessary atomic masses (in u) are given below:
12
Sep
What is the minimum photon energy required to remove the least bound neutron of 40 Ca 20 and 40 Ar 18? The necessary atomic masses (in u) are given below: What is the minimum photon energy required to remove the least bound neutron of 40 Ca 20 and 40 Ar 18? The necessary atomic masses [...]
A rock is 1.5 * 10^9 years old. The rock contains 238 U which disintegrates to form 206 Pb. Assume that there was no 206 Pb in the rock initially and it is the only stable product formed by the decay.
12
Sep
A rock is 1.5 * 10^9 years old. The rock contains 238 U which disintegrates to form 206 Pb. Assume that there was no 206 Pb in the rock initially and it is the only stable product formed by the decay. A rock is 1.5 * 10^9 years old. The rock contains 238 U which [...]
A thin mica sheet of thickness 2×10^−6 m and refractive index (μ=1.5) is introduced in the path of the first wave. The wavelength of the wave used is 5000 Å. The central bright maximum will shift
12
Sep
A thin mica sheet of thickness 2×10^−6 m and refractive index (μ=1.5) is introduced in the path of the first wave. The wavelength of the wave used is 5000 Å. The central bright maximum will shift A thin mica sheet of thickness 2×10^−6 m and refractive index (μ=1.5) is introduced in the path of the [...]
A radioactive element decays by beta emission. A detector records n beta particles in 2 s and in next 2 s, it records 0.75 n beta particles. Find mean life correct to nearest whole number.
12
Sep
A radioactive element decays by beta emission. A detector records n beta particles in 2 s and in next 2 s, it records 0.75 n beta particles. Find mean life correct to nearest whole number. A radioactive element decays by beta emission. A detector records n beta particles in 2 s and in next 2 [...]
A nucleus at rest undergoes alpha decay emitting an alpha particle of de Broglie wavelength lemda = 5.76 * 10^-15 m. If the mass of the daughter nucleus is 223.610 amu and that of the alpha particle is 4.002 amu, determine the total kinetic energy
12
Sep
A nucleus at rest undergoes alpha decay emitting an alpha particle of de Broglie wavelength lemda = 5.76 * 10^-15 m. If the mass of the daughter nucleus is 223.610 amu and that of the alpha particle is 4.002 amu, determine the total kinetic energy The element curium 218 Cm 96 has a mean-life of [...]
In a two -slit experiment with monochromatic light, 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, 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
12
Sep
In a two -slit experiment with monochromatic light, 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, the change in fringe width is 3 x 10^-5 m. If seperation between the slits is 10^-3 m, the wavelength of [...]
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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 ,
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 nuclear reactor, 235U undergoes fission liberating 200 MeV of energy. The reactor has a 10% efficiency and produces 1000 MW power. If the reactor is to function for 10 years,
12
Sep
In a nuclear reactor, 235U undergoes fission liberating 200 MeV of energy. The reactor has a 10% efficiency and produces 1000 MW power. If the reactor is to function for 10 years, 235U undergoes fission liberating 200 MeV of energy. The reactor has a 10% efficiency and produces 1000 MW power. If the reactor is [...]
The element curium 218 Cm 96 has a mean-life of 10^13 S. Its primary decay modes are spontaneous fission and alpha decay, the former with a probability of 8% and the latter with a probability of 92%.
12
Sep
The element curium 218 Cm 96 has a mean-life of 10^13 S. Its primary decay modes are spontaneous fission and alpha decay, the former with a probability of 8% and the latter with a probability of 92%. The element curium 218 Cm 96 has a mean-life of 10^13 S. Its primary decay modes are spontaneous [...]
The figure shows a double slit experiment with P and Q as the slits. The path lengths PX and QX are nλ and (n+2)λ respectively, where n is a whole number and λ is the wavelength. Taking the central fringe as zero, what is formed at X?
12
Sep
The figure shows a double slit experiment with P and Q as the slits. The path lengths PX and QX are nλ and (n+2)λ respectively, where n is a whole number and λ is the wavelength. Taking the central fringe as zero, what is formed at X? The figure shows a double slit experiment with [...]
In an ore containing uranium, the ratio of U238 to Pb 206 is 3. Calculate the age of the ore, assuming that all the lead present in the ore is the final stable product of U238. Take the half-life
12
Sep
In an ore containing uranium, the ratio of U238 to Pb 206 is 3. Calculate the age of the ore, assuming that all the lead present in the ore is the final stable product of U238. Take the half-life assuming that all the lead present in the ore is the final stable product of U238. [...]