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Consider a light beam incident from air to a glass slab at Brewster’s angle as shown in Fig. A polaroid is placed in the path of the emergent ray at point P and rotated about an axis passing through the centre and perpendicular to the plane of the

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Consider sunlight incident on a slit of width 104 A. The image seen through the slit

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Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d, at an angle θ. The phase difference between the ray reflected by the top surface of the glass and the bottom surface is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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In a Young’s double slit experiment, the source is white light. One of the holes is covered by a red filter and another by a blue filter. In this

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Fig. shows a standard two slit arrangement with slits S1, S2. P1, P2 are the two minima points on either side of P (Fig. ). At P2 on the screen, there is a hole and behind P2 is a second 2- slit arrangement with slits S3, S4 and a second screen behind

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Two source `S_1` and `S_2` of intensity `I_1` and `I_1` are placed in front of a screen [Fig. (a)]. The patteren of intensity distribution seen in the central portion is given by Fig. (b). In this case which of the following statements are true.

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Consider sunlight incident on a pinhole of width 103A. The image of the pinhole seen on a screen shall

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Consider the diffraction patern for a small pinhole. As the size of the hole is

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For light diverging from a point

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Is Huygen’s principle valid for longitudunal sound

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Consider a point at the focal point of a convergent lens. Another convergent lens of short focal length is placed on the other side. What is the nature of the wavefronts emerging from the final

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What is the shape of the wavefront on earth for

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Why is the diffraction of sound waves more evident in daily experience than that of light

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The human eye has an approximate angular resolution of `φ = 5.8 × 10^(-4)` rad and a typical photoprinter prints a minimum of 300 dpi (dots per inch, 1 inch = 2.54 cm). At what minimal distance z should a printed page be held so that one does not see the individual

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A polariod (I) is placed in front of a monochromatic source. Another polatiod (II) is placed in front of this polaroid (I) and rotated till no light passes. A third polaroid (III) is now placed in between (I) and (II). In this case, will light emerge from (II).

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Can reflection result in plane polarised light if the light is incident on the interface from the side with higher refractive

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For the same objective, find the ratio of the least separation between two points to be distinguished by a microscope for light of 5000 A o and electrons accelerated through 100V used as the illuminating

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Consider a two slit interference arrangements (Fig. ) such that the distance of the screen from the slits is half the distance between the slits. Obtain the value of D in terms of λ such that the first minima on the screen falls at a distance D from the centre

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Fig. shown a two slit arrangement with a source which emits unpolarised light. P is a polariser with axis whose direction is not given. If `I_0` is the intensity of the principal maxima when no polariser is present, calculate in the present case, the intensity of the principal maxima as well as of the first

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A small transparent slab containing material of μ = 1.5 is placed along AS2 (Fig.). What will be the distance from O of the principal maxima and of the first minima on either side of the principal maxima obtained in the absence of the glass slab.AC = CO = D, S1C = S2C = d <<

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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