NCERT Class 12 Physics Solutions Wave Optics

NCERT Class 12 Physics Solutions Wave Optics with answers available in Pdf for free download. The NCERT Solutions for Class 12 Physics with answers have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Solutions to questions given in NCERT book for Class 12 Physics are an important part of exams for Grade 12 Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise Solutions for NCERT Class 12 Physics and also download more latest study material for all subjects

Wave Optics Class 12 NCERT Solutions

Class 12 Physics students should refer to the following NCERT questions with answers for Wave Optics in standard 12. These NCERT Solutions with answers for Grade 12 Physics will come in exams and help you to score good marks

Wave Optics NCERT Solutions Class 12

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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