a thin slice is cut out of a glass cylinder along a plane

A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown in Figure. The observed interference fringes from this combination shall be
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A. straight

B. circular

C. equally spaced

D. having fringe spacing which increases as we go outwards

Answer : straight

Solution :
Locus of equal path difference are lines running parallel to axis of the cylinder. Hence straight fringes will be observed.

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Releted Question 1

In Young’s double-slit experiment, the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width is

A. unchanged.

B. halved

C. doubled

D. quadrupled

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Releted Question 2

Two coherent monochromatic light beams of intensities $$I$$ and $$4\,I$$ are superposed. The maximum and minimum possible intensities in the resulting beam are

A. $$5\,I$$ and $$I$$

B. $$5\,I$$ and $$3\,I$$

C. $$9\,I$$ and $$I$$

D. $$9\,I$$ and $$3\,I$$

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Releted Question 3

A beam of light of wave length $$600\,nm$$ from a distance source falls on a single slit $$1mm$$ wide and a resulting diffraction pattern is observed on a screen $$2\,m$$ away. The distance between the first dark fringes on either side of central bright fringe is

A. $$1.2\,cm$$

B. $$1.2\,mm$$

C. $$2.4\,cm$$

D. $$2.4\,mm$$

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Releted Question 4

Consider Fraunh offer diffraction pattern obtained with a single slit illuminated at normal incidence. At the angular position of the first diffraction minimum the phase difference (in radians) between the wavelets from the opposite edges of the slit is

A. $$\frac{\pi }{4}$$

B. $$\frac{\pi }{2}$$

C. $$2\,\pi $$

D. $$\pi $$

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A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown in Figure. The observed interference fringes from this combination shall be

Releted MCQ Question on
Optics and Wave >> Wave Optics

In Young’s double-slit experiment, the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width is

Two coherent monochromatic light beams of intensities $$I$$ and $$4\,I$$ are superposed. The maximum and minimum possible intensities in the resulting beam are

A beam of light of wave length $$600\,nm$$ from a distance source falls on a single slit $$1mm$$ wide and a resulting diffraction pattern is observed on a screen $$2\,m$$ away. The distance between the first dark fringes on either side of central bright fringe is

Consider Fraunh offer diffraction pattern obtained with a single slit illuminated at normal incidence. At the angular position of the first diffraction minimum the phase difference (in radians) between the wavelets from the opposite edges of the slit is

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A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown in Figure. The observed interference fringes from this combination shall be

Releted MCQ Question on Optics and Wave >> Wave Optics

In Young’s double-slit experiment, the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width is

Two coherent monochromatic light beams of intensities $$I$$ and $$4\,I$$ are superposed. The maximum and minimum possible intensities in the resulting beam are

A beam of light of wave length $$600\,nm$$ from a distance source falls on a single slit $$1mm$$ wide and a resulting diffraction pattern is observed on a screen $$2\,m$$ away. The distance between the first dark fringes on either side of central bright fringe is

Consider Fraunh offer diffraction pattern obtained with a single slit illuminated at normal incidence. At the angular position of the first diffraction minimum the phase difference (in radians) between the wavelets from the opposite edges of the slit is

Practice More Releted MCQ Question on Wave Optics

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