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Ashok0210

Asked: March 21, 2021In: Class 12 Physics

You have learnt in the text how Huygens’s principle leads to the laws of reflection and refraction. Use the same principle to deduce directly that a point object placed in front of a plane mirror produces a virtual image whose distance from the mirror is equal to the object distance from the mirror.

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.13 NCERT Solutions for Class 12 Physics Chapter 10 Question-13 Additional Exercise

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

Explain how Corpuscular theory predicts the speed of light in a medium, say, water, to be greater than the speed of light in vacuum. Is the prediction confirmed by experimental determination of the speed of light in water? If not, which alternative picture of light is consistent with experiment?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.12 NCERT Solutions for Class 12 Physics Chapter 10 Question-12 Additional Exercise

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

The 6563 Aº Ha line emitted by hydrogen in a star is found to be red shifted by 15 Aº. Estimate the speed with which the star is receding from the Earth.

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.11 NCERT Solutions for Class 12 Physics Chapter 10 Question-11 Additional Exercise

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

Estimate the distance for which ray optics is good approximation for an aperture of 4 mm and wavelength 400 nm.

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.10 NCERT Solutions for Class 12 Physics Chapter 10 Question-10

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

Light of wavelength 5000 Aº falls on a plane reflecting surface. What are the wavelength and frequency of the reflected light? For what angle of incidence is the reflected ray normal to the incident ray?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.9 NCERT Solutions for Class 12 Physics Chapter 10 Question-9

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