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Wave Optics Physics - Wave Optics

Maharashtra Board - STD 12 Science - Physics (MSBSHSE - English Medium). 53 questions in this chapter.

Question types

Wave Optics question types

53 questions across 4 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

53
Questions
4
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5
Question types
Sample Questions

Wave Optics questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 5Short Answer Type Question2 Marks
A red light of wavelength \(6400 AA\) in air has wavelength \(4000 AA\) in glass. If the wavelength of violet light in air is \(4400 AA\), find its wavelength in glass. (Assume that \(\mu_r \approx \mu_v\) )
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Q 6Short Answer Type Question2 Marks
The minimum angular reparation between two stars is \(4 \times 10^{-6} rad\), if telescope is used to observe them with an objective of aperture \(16 cm\). Find the wavelength of light used.
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Q 8Answer the following in Brief3 Marks
A parallel beam of monochromatic light is incident on a glass slab at an angle of incidence \(60^{\circ}\). Find the ratio of width of the beam in the glass to that in the air if refractive index of glass is \(\frac{3}{2}\).
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Q 9Answer the following in Brief3 Marks
In a single slit diffraction pattern, the distance between first minima on the right and first minima on the left of central maximum is \(4 mm\). The screen on which the pattern is displaced, is \(2 m\) from the slit and wavelength of light used is 6000Å. Calculate width of the slit and width of the central maximum.
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Q 10Answer the following in Brief3 Marks
In a biprism experiment, when a convex lens was placed between the biprism and eyepiece at a distance of \(30 cm\) from the slit, the virtual images of the slits are found to be separated by \(7 mm\). If the distance between the slit and biprism is \(10 cm\) and between the biprism and eyepiece is \(80 cm\), find the linear magnification of the image.
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Q 11Answer the following in Brief3 Marks
In a biprism experiment, a slit is illuminated by a light of wavelength  $4800Å.$ The distance between the slit and biprism is \(15 cm\) and the distance between the biprism and eyepiece is \(85 cm\). If the distance between virtual sources is \(3 mm\), determine the distance between 4th bright band on one side and \(4^{\text {th }}\) dark band on the other side of the central bright band.
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