Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

Blue light of wavelength 480 nm is most strongly reflected off a thin film of oil on a glass slab when viewed near normal incidence. Assuming that the index of refraction of the oil Blue light of wavelength 480 nm is most strongly reflected off a thin film of oil on a glass slab when [...]

Light is incident at an angle phi with normal to a plane containing two slits of separation d. Select the expression that correctly describes the positions of the interference maxima in terms Light is incident at an angle phi with normal to a plane containing two slits of separation d. Select the expression that correctly [...]

In a double-slit experiment, two parallel slits are illuminated first by light of wavelength 400 nm and then by light of unknown wavelength. The fourth-order fringe resulting from the known In a double slit experiment two parallel slits are illuminated first by light of wavelength 400 nm and then by light of unknown wavelength. The [...]

Microwaves from a transmitter are directed normally toward a plane reflector. A detector moves along the normal to the reflector. Between positions of 14 successive maxima the detector Microwaves from a transmitter are directed normally toward a plane reflector. A detector moves along the normal to the reflector. Between positions of 14 successive maxima the [...]

The wavelengths of light lemda 1 and lemda 2 are sent through Young’s double-slit apparatus simultaneously. If the third-order bright fringe coincides with the fourth-order bright fringe, then The wavelengths of light lemda 1 and lemda 2 are sent through Young's double-slit apparatus simultaneously. If the third-order bright fringe coincides with the fourth-order bright fringe [...]

A glass plate of length 10cm, breadth 40 cm and thickness5 cm weigh 3 kg in air. It is held vertically with the long side horizontal and the lower half under water. Find the apparent weight of the plate. Surface tension of water = 50 x 10^-2 N/m. A glass plate of length 10cm a [...]

The YDSE apparatus is as shown in figure. The condition for point P to be a dark fringe is The YDSE apparatus is as shown in figure. The condition for point P to be a dark fringe is October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

If the work done in blowing a bubble of volume V is W, then find the work done in blowing the bubble of volume 2 v from the same soap soilution. If the work done in blowing a bubble of volume V is W then find the work done in blowing the bubble of volume [...]

A soap bubble of radius R is blown. After heating the solution a second bubble of radius 2 R is blown. The work required to blow the second bubble in comparison to that required for the first bubble is calculate the force required to take away the plate from the surface of water. if we [...]

The path difference between two interfering waves at a point on the screen is lemda /6. The ratio of intensity at this point and that at the central bright fringe will be (assume that intensity The path difference between two interfering waves at a point on the screen is lemda /6. The ratio of intensity [...]