NCERT Class 12 Physics Solutions Wave Optics- NCERT Solutions prepared for CBSE students by the best teachers in Delhi.
Class XII Chapter 10 – Wave Optics Physics
Question 10.1: Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected, and (b) refracted light? Refractive index of water is 1.33.
Question 10.2: What is the shape of the wavefront in each of the following cases:
(a) Light diverging from a point source.
(b) Light emerging out of a convex lens when a point source is placed at its focus.
(c) The portion of the wavefront of light from a distant star intercepted by the Earth.
Question 10.3:
(a) The refractive index of glass is 1.5. What is the speed of light in glass? Speed of light in vacuum is 3.0 × 108 m s−1)
(b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?
Question 10.5: In Young’s double-slit experiment using monochromatic light of wavelengthλ, the intensity of light at a point on the screen where path difference is λ, is K units. What is the intensity of light at a point where path difference is λ /3?
Question 10.6: A beam of light consisting of two wavelengths, 650 nm and 520 nm, is used to obtain interference fringes in a Young’s double-slit experiment.
(a) Find the distance of the third bright fringe on the screen from the central maximum for wavelength 650 nm.
(b) What is the least distance from the central maximum where the bright fringes due to both the wavelengths coincide?
Question 10.7: In a double-slit experiment the angular width of a fringe is found to be 0.2° on a screen placed 1 m away. The wavelength of light used is 600 nm. What will be the angular width of the fringe if the entire experimental apparatus is immersed in water? Take refractive index of water to be 4/3.
Question 10.8: What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5.)
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NCERT Solutions for class 12
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NCERT Solutions for Class 12 Physics
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NCERT Solutions for Class 12 Physics chapter wise
NCERT Solutions for Class 12 Physics- Electrostatic Potential And Capacitance
NCERT Solutions for Class 12 Physics- Magnetism And Matter
NCERT Solutions for Class 12 Physics- Moving Charges And Magnetism
NCERT Solutions for Class 12 Physics- Ray Optics And Optical Instruments
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NCERT Solutions for Class 12 Biology chapter wise
NCERT Solutions Class 12 Biology Chapter 1 Reproduction in Organisms
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FAQ
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It is acceptable having decent information on NCERT books who are wishing to make sure about 75 or up to 85% in 12th BOARD Exams. Here good knowledge means done all chapters-examples and revised many times.
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You must do 10 pervious year BOARD paper and solve a many as the question you can. It's advisable to practice the previous 10 years Board exam papers. So, that one can get a brief understanding of the exam pattern.