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Two coherent sources separated by distance d are radiating in phase having wavelength λ. A detector moves in a big circle around the two sources in the plane of the two sources. The angular position of n=4 interference maximum is given as
12
Sep
Two coherent sources separated by distance d are radiating in phase having wavelength λ. A detector moves in a big circle around the two sources in the plane of the two sources. The angular position of n=4 interference maximum is given as Four different independent waves are represented by with which two waves interference is [...]
Calculate the total energy released if 1.0 kg of 235U undergoes fission, taking the disintegration energy per event to be Q = 208 MeV (a more accurate value than the estimate given previously).
12
Sep
Calculate the total energy released if 1.0 kg of 235U undergoes fission, taking the disintegration energy per event to be Q = 208 MeV (a more accurate value than the estimate given previously). Calculate the total energy released if 1.0 kg of 235U undergoes fission taking the disintegration energy per event to be Q = [...]
Fig, here shows P and Q as two equally intense coherent sources emitting radiations of wavelength 20m. The separation PQ si 5m, and phase of P is ahead of the phase Q by 90∘. A, B and C are three distant points of observation equidistant from the mid – point of PQ. The intensity of radiations of A, B, C will be in the ratio
12
Sep
Fig, here shows P and Q as two equally intense coherent sources emitting radiations of wavelength 20m. The separation PQ si 5m, and phase of P is ahead of the phase Q by 90∘. A, B and C are three distant points of observation equidistant from the mid – point of PQ. The intensity of [...]
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and phase of P is ahead of the phase Q by 90∘. A ,
B ,
B and C are three distant points of observation equidistant from the mid - point of PQ. The intensity of radiations of A ,
C will be in the ratio ,
Fig ,
here shows P and Q as two equally intense coherent sources emitting radiations of wavelength 20m. The separation PQ si 5m ,
Two other possible ways by which 235U can undergo fission when bombarded with a neutron are (1) by the release of 140 Xe and 94Sr as fission fragments and (2) by the release of 132Sn and
12
Sep
Two other possible ways by which 235U can undergo fission when bombarded with a neutron are (1) by the release of 140 Xe and 94Sr as fission fragments and (2) by the release of 132Sn and Two other possible ways by which 235U can undergo fission when bombarded with a neutron are (1) by the [...]
Consider a collision between two particles one of which is at rest and the other strikes it head on with momentum p1. Calculate the energy of reaction Q in terms of the kinetic energy of the particles before and after they collide.
12
Sep
Consider a collision between two particles one of which is at rest and the other strikes it head on with momentum p1. Calculate the energy of reaction Q in terms of the kinetic energy of the particles before and after they collide. Nuclei of radioactive element A are being produced at a constant rate alpha. [...]
Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by 2πd radian. If there is a maximum in direction D, the distance XO using n as an integer is given by
12
Sep
Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by 2πd radian. If there is a maximum in direction D, the distance XO using n as an integer is given by the distance XO using n as an integer is given by Two point [...]
Find the Q value of the reaction P+.7Li→.4He+.4He. Determine whether the reaction is exothermic or endothermic. The atomic masses of .1H,.4He and .7Li are 1.007825u,4.002603u, and 7.016004u, respectively.
12
Sep
Find the Q value of the reaction P+.7Li→.4He+.4He. Determine whether the reaction is exothermic or endothermic. The atomic masses of .1H,.4He and .7Li are 1.007825u,4.002603u, and 7.016004u, respectively. .4He and .7Li are 1.007825u 4.002603u and 7.016004u Find the Q value of the reaction P+.7Li→.4He+.4He. Determine whether the reaction is exothermic or endothermic. The atomic masses [...]
In the adjacent diagram, CP represents a wavefront and AO & BP, the corresponding two rays. Find the condition on θ for constructive interference at P between the ray BP and reflected ray OP
12
Sep
In the adjacent diagram, CP represents a wavefront and AO & BP, the corresponding two rays. Find the condition on θ for constructive interference at P between the ray BP and reflected ray OP CP represents a wavefront and AO & BP In the adjacent diagram the corresponding two rays. Find the condition on θ [...]
Find the half-life of uranium, given that 3.32 * 10^-7 g of radium is found per gram of uranium, given that 3.32 * 10^-7 g of radium is found per gram of uranium in old materials. The atomic weights of uranium and radium are 238 and 226 and half-life of radium is 1600 years
12
Sep
Find the half-life of uranium, given that 3.32 * 10^-7 g of radium is found per gram of uranium, given that 3.32 * 10^-7 g of radium is found per gram of uranium in old materials. The atomic weights of uranium and radium are 238 and 226 and half-life of radium is 1600 years Find [...]
A ray of light of intensity I is incident on a parallel glass slab at a point A as show. It undergoes partial reflection and refraction. At each reflaction 25% of incident energy is reflected. The rays AB and A’B’ undergo interference. The ratio Imax / Imin is
12
Sep
A ray of light of intensity I is incident on a parallel glass slab at a point A as show. It undergoes partial reflection and refraction. At each reflaction 25% of incident energy is reflected. The rays AB and A’B’ undergo interference. The ratio Imax / Imin is Four different independent waves are represented by [...]