Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Some amount of a radioactive substance (half-life = 10 days) is spread inside a room and consequently the level of radiation becomes 50 times the permissible level for normal occupancy
12
Sep
Some amount of a radioactive substance (half-life = 10 days) is spread inside a room and consequently the level of radiation becomes 50 times the permissible level for normal occupancy Some amount of a radioactive substance (half-life = 10 days) is spread inside a room and consequently the level of radiation becomes 50 times the [...]
The path difference between two interfering waves of equal intensities at a point on the screen is λ/4. The ratio of intensity at this point and that at the central fringe will be
12
Sep
The path difference between two interfering waves of equal intensities at a point on the screen is λ/4. The ratio of intensity at this point and that at the central fringe will be The path difference between two interfering waves of equal intensities at a point on the screen is λ/4. The ratio of intensity [...]
In a Young’s double slit experiment, I0 is the intensity at the central maximum and β is the fringe width. The intensity at a point P distant x from the centre will be
12
Sep
In a Young’s double slit experiment, I0 is the intensity at the central maximum and β is the fringe width. The intensity at a point P distant x from the centre will be I0 is the intensity at the central maximum and β is the fringe width. The intensity at a point P distant x [...]
There is a stream of neutrons with a kinetic energy of 0.0327 eV. If the half-life of neutrons is 700 s, what fraction of neutrons will decay before they travel a distance of 10 m?
12
Sep
There is a stream of neutrons with a kinetic energy of 0.0327 eV. If the half-life of neutrons is 700 s, what fraction of neutrons will decay before they travel a distance of 10 m? There is a stream of neutrons with a kinetic energy of 0.0327 eV. If the half-life of neutrons is 700 [...]
A count rate meter is used to measure the activity of a given sample. At one instant, the meter shows 4750 counts per minute. Five minutes later, it shows 2700 counts per minute.
12
Sep
A count rate meter is used to measure the activity of a given sample. At one instant, the meter shows 4750 counts per minute. Five minutes later, it shows 2700 counts per minute. A count rate meter is used to measure the activity of a given sample. At one instant it shows 2700 counts per [...]
Two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 36% reducing its width, then the intensity of light at the same point will be
12
Sep
Two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 36% reducing its width, then the intensity of light at the same point will be then the intensity of light at the same point will be Two coherent sources [...]
The nuclear reaction n+105B→73Li+42He is observed to occur even when very slow-moving neutrons (Mn=1.0087amu) strike a boron atom at rest. For a particular reaction in which Kn=0 , the helium (MHe=4.0026amu) is observed to have a speed of 9.30×106ms−1. Determine (a) the kinetic energy of the lithium (MLi=7.0160amu) and (b) the Q value of the reaction.
12
Sep
The nuclear reaction n+105B→73Li+42He is observed to occur even when very slow-moving neutrons (Mn=1.0087amu) strike a boron atom at rest. For a particular reaction in which Kn=0 , the helium (MHe=4.0026amu) is observed to have a speed of 9.30×106ms−1. Determine (a) the kinetic energy of the lithium (MLi=7.0160amu) and (b) the Q value of the [...]
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the helium (MHe=4.0026amu) is observed to have a speed of 9.30×106ms−1. Determine (a) the kinetic energy of the lithium (MLi=7.0160amu) and (b) the Q value of the reaction. ,
The nuclear reaction n+.105B→.73Li+.42He is observed to occur even when very slow-moving neutrons (Mn=1.0087amu) strike a boron atom at rest. For a particular reaction in which Kn=0 ,
The maximum intensity in young’s double-slit experiment is I0. Distance between the slit is d=5λ, where λ is the wavelength of monochromatic light used in the experiment. What will be the intensity of light in front of one of the slits on a screen at a distance D = 10 d?
12
Sep
The maximum intensity in young’s double-slit experiment is I0. Distance between the slit is d=5λ, where λ is the wavelength of monochromatic light used in the experiment. What will be the intensity of light in front of one of the slits on a screen at a distance D = 10 d? The maximum intensity in [...]
Calculate the ground state Q value of the induced fission reaction in the equation n+.23592U→.23692U∗→.9940Zr+.13452Te+2n If the neutron is thermal. A thermal neutorn is in thermal equilibrium with its envitronmnet, it has an average kinetic energy given by (3/2)kT. Given : m(n)=1.0087amu, M(.235U)=235.0439)amu, M(.99Zr)=98.916amu, M(.134Te)=133.9115amu.
12
Sep
Calculate the ground state Q value of the induced fission reaction in the equation n+.23592U→.23692U∗→.9940Zr+.13452Te+2n If the neutron is thermal. A thermal neutorn is in thermal equilibrium with its envitronmnet, it has an average kinetic energy given by (3/2)kT. Given : m(n)=1.0087amu, M(.235U)=235.0439)amu, M(.99Zr)=98.916amu, M(.134Te)=133.9115amu. There is a stream of neutrons with a kinetic energy [...]
In young’s double slit experiment, the intensity on the screen at a point where path difference is lamda is K. What will be the intensity at the point where path difference is lamda /4?
12
Sep
In young’s double slit experiment, the intensity on the screen at a point where path difference is lamda is K. What will be the intensity at the point where path difference is lamda /4? In Young's double slit experiment the intensity on the screen at a point where path difference is lamda is K. What [...]