To find the distance d over which a signal can be seen clearly in foggy conditions, a railways engineer uses dimensional analysis and assumes that the distance depends on the mass density `rho` of the fog, intensity `("power"//"area")` S of the light from the signal and its frequency f. The engineer finds that d is proportional to `S^(1//n)`. The value of n is.

To find the distance d over which a signal can be seen clearly in foggy conditions, a railways-engineer uses dimensions and assumes that the distance depends on the mass density rho of the fog, intensity (power/area) S of the light from the signal and its frequency f . the engineer finds that d is proportional to S^(1//n) . the value of n is

To find the distance d over which a signal can be seen clearly in foggy conditions, a railways-engineer uses dimensions and assumes that the distance depends on the mass density rho of the fog, intensity (power/area) S of the light from the signal and its frequency f . the engineer finds that d is proportional to S^(1//n) . the value of n is

Assume that the de Broglie wave associated with an electron can from a standing wave between the atom arrange in a one dimensional array with nodes at each of the atomic sites. It is found that one such standing wave if the distance d between the atoms of the array is 2 A^0 A similar standing wave is again formed if d is increased to 2.5Å . Find the energy of the electrons in electron volts and the least value of d for which the standing wave type described above can from .

[" A solid sphere of radius "R" is charged with "],[" volume charge density "rho=Kr^(n)," where "K" and "n],[" are constants and "r" is the distance from its "],[" centre.If electric field inside the sphere at "],[" distance "r" is proportional to "r^(4)," then find the "],[" value of "n.]

A satellite S_(1) of mass m is revolving at a distance of R from centre of earth and the other satellite S_(2) of mass 4m is revolving at a distance of 4R from the centre of earth. The time periods of revolution of two satellites are in the raito 1 : n. Find the value of n.

Assume that the de Brogie wave associated with an electron can can from a standing wave between the atome arrange in a one dimensional array with nodes at each of the atomic sites it is found that one such standing wave if the distance d between the aloms of the arry is 2 M139 wave is again formad if d is increased to 2.5Å . A similar standing in the distance if d find the energy of the electrons velts and tghe least value of d for which the standing wave type described above can from .

Let us assume that the de-Broglie wave asssociated with an electron froms a standing wave between the atoms arranged in a one-dimensional array with nodes at each of the atomic sites. If is found that one such standing wave is formed, if the distance between the atoms of the array is 3 Å . A similar standing wave is again formed, if d is increased to 3.5 Å but not for any intermediate value of d. Find the energy of the electrons in electron volts and the least value of d for which the standing wave of the type described above can from.

Assume that the de Broglie wave associated with an electron can from a standing wave between the atom arrange in a one dimensional array with nodes at each of the atomic sites. It is found that one such standing wave if the distance d between the atoms of the array is 2 A^0 A similar standing wave is again formed if d is increased to 2.5overset @A . Find the energy of the electrons in electron volts and the least value of d for which the standing wave type described above can from .

Monochromatic light of wavelength lamda passes through a very narrow slit S and then strikes a screen placed at a distance D = 1m in which there are two parallel slits S_(1) and S_(2) as shown. Slit S_(1) is directly in line with S while S_(2) is displaced a distance d to one side. The light is detected at point P on a second screen, equidistant from S_(1) and S_(2) When either slit S_(1) or S_(2) is open equal light intensities I are measured at point P. When both slits are open, the intensity is three times as large i.e. 3 I . If the minimum possible wavelength is Nd^(2) , then find the value of N (d lt lt D)

Monochromatic light of wavelength lamda passes through a very narrow slit S and then strikes a screen placed at a distance D = 1m in which there are two parallel slits S_(1) and S_(2) as shown. Slit S_(1) is directly in line with S while S_(2) is displaced a distance d to one side. The light is detected at point P on a second screen, equidistant from S_(1) and S_(2) When either slit S_(1) or S_(2) is open equal light intensities I are measured at point P. When both slits are open, the intensity is three times as large i.e. 3 I . If the minimum possible wavelength is Nd^(2) , then find the value of N (d lt lt D)