Cengage JEE Mains Physics by B.M Sharma
In Young’s double slit experiment d/D=10^-4. At a point P on the screen the resulting intensity is equal to the intensity due to individual slit I0. Then the distance of point P from the central maxima is ( λ=6000Å)
15
Nov
In Young’s double slit experiment d/D=10^-4. At a point P on the screen the resulting intensity is equal to the intensity due to individual slit I0. Then the distance of point P from the central maxima is ( λ=6000Å) In a YDSE with identical slits the intensity at the same point is the intensity of [...]
Two identical coherent sources are placed on a diameter of a circle of radius R at separation
15
Nov
Two identical coherent sources are placed on a diameter of a circle of radius R at separation Two identical coherent sources are placed on a diameter of a circle of radius R at separation November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 27 - Wave Optics ,
The maximum intensity in Young’s double slit experiment is I0. Distance between the slits 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 = 10d?
15
Nov
The maximum intensity in Young’s double slit experiment is I0. Distance between the slits 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 = 10d? The maximum [...]
In a YDSE with identical slits, the intensity of the central bright fringe is I0.If one of the slits is covered, the intensity at the same point is
15
Nov
In a YDSE with identical slits, the intensity of the central bright fringe is I0.If one of the slits is covered, the intensity at the same point is In a YDSE with identical slits the intensity at the same point is the intensity of the central bright fringe is I0. If one of the slits [...]
The slits in a double-slit interference experiment are illuminated by orange light (λ=60nm). A thin transparent plastic of thickness t is placed in front of one of the slits. The number of fringes shifting on screen is plotted versus the refractive index μ of the plastic in graph shown in figure. The value of t is
15
Nov
The slits in a double-slit interference experiment are illuminated by orange light (λ=60nm). A thin transparent plastic of thickness t is placed in front of one of the slits. The number of fringes shifting on screen is plotted versus the refractive index μ of the plastic in graph shown in figure. The value of t [...]
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 is 1.2 and that of the glass is 1.6, what is the minimum thickness of the oil film (other then zero)?
15
Nov
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 is 1.2 and that of the glass is 1.6, what is the minimum thickness of the oil film (other then zero)? [...]
In Young’s double-slit experiment, the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act cannot restore the original fringe width?
15
Nov
In Young’s double-slit experiment, the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act cannot restore the original fringe width? In Young's double slit experiment the slits are illuminated by monochromatic light. The entire set-up is immersed in pure water. Which of the following act [...]
Light is incident at an angle ϕ with the normal to a plane containing two slits of separation d. Select the expression that correctly describes the positions of the interference maxima in terms of the incoming angle ϕ and outgoing angle θ
15
Nov
Light is incident at an angle ϕ with the normal to a plane containing two slits of separation d. Select the expression that correctly describes the positions of the interference maxima in terms of the incoming angle ϕ and outgoing angle θ A convex mirror of radius of curvature 1.6 m has an object placed [...]
Statement I: A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other. Statement II: Angle of incidence is equal to angle of reflection.
15
Nov
Statement I: A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other. Statement II: Angle of incidence is equal to angle of reflection. A convex mirror of radius of curvature 1.6 m has an object placed [...]
STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as positive.
15
Nov
STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as positive. STATEMENT-1 We cannot produce a real image by plane of convex mirror under any circumstances. STATEMENT-2 The focal length of a convex mirror is always taken as [...]