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In Young’s double-slit experiment , we get 60 fringes in the field of view if we use light of wavelength 4000Å. The number of fringes we will get in the same field of view if we use light of wavelength 6000 Å is
12
Sep
In Young’s double-slit experiment , we get 60 fringes in the field of view if we use light of wavelength 4000Å. The number of fringes we will get in the same field of view if we use light of wavelength 6000 Å is In Young's double slit experiment we get 60 fringes in the field [...]
A small quantity of solution containing 24Na radionuclide (half-life 15 h) of activity 1.0 microcurie is injected into the blood of a person. A sample of the blood of volume 1 cm^3 taken after
12
Sep
A small quantity of solution containing 24Na radionuclide (half-life 15 h) of activity 1.0 microcurie is injected into the blood of a person. A sample of the blood of volume 1 cm^3 taken after A small quantity of solution containing 24Na radionuclide (half-life 15 h) of activity 1.0 microcurie is injected into the blood of [...]
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 [...]