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Home/class 12 chapter-10 physics

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Ashok0210
Ashok0210
Asked: March 21, 2021In: Class 12 Physics

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.]

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.1 NCERT Solutions for Class 12 Physics Chapter 10 Question-1

2020-2021cbse and up boardclass 12 chapter-10 physicsclass 12 physicsncert class 12 wave optics
  • 1 1 Answer
  • 220 Views
  • 4 Votes
Answer
Ashok0210
Ashok0210
Asked: March 21, 2021In: Class 12 Physics

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.

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.7 NCERT Solutions for Class 12 Physics Chapter 10 Question-7

2020-2021cbse and up boardclass 12 chapter-10 physicsclass 12 physicsncert class 12 wave optics
  • 1 1 Answer
  • 226 Views
  • 3 Votes
Answer
Ashok0210
Ashok0210
Asked: March 21, 2021In: Class 12 Physics

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?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.6 NCERT Solutions for Class 12 Physics Chapter 10 Question-6

2020-2021cbse and up boardclass 12 chapter-10 physicsclass 12 physicsncert class 12 wave optics
  • 1 1 Answer
  • 242 Views
  • 3 Votes
Answer
Ashok0210
Ashok0210
Asked: March 21, 2021In: Class 12 Physics

In Young’s double-slit experiment using monochromatic light of wavelength λ, 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?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.5 NCERT Solutions for Class 12 Physics Chapter 10 Question-5

2020-2021cbse and up boardclass 12 chapter-10 physicsclass 12 physicsncert class 12 wave optics
  • 1 1 Answer
  • 266 Views
  • 3 Votes
Answer
Ashok0210
Ashok0210
Asked: March 21, 2021In: Class 12 Physics

In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.4 NCERT Solutions for Class 12 Physics Chapter 10 Question-4

2020-2021cbse and up boardclass 12 chapter-10 physicsclass 12 physicsncert class 12 wave optics
  • 1 1 Answer
  • 108 Views
  • 3 Votes
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