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Ashok0210

Asked: March 21, 2021In: Class 12 Physics

In double-slit experiment using light of wavelength 600 nm, the angular width of a fringe formed on a distant screen is 0.1º. What is the spacing between the two slits?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.16 NCERT Solutions for Class 12 Physics Chapter 10 Question-16 Additional Exercise

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

For sound waves, the Doppler formula for frequency shift differs slightly between the two situations: (i) source at rest; observer moving, and (ii) source moving; observer at rest. The exact Doppler formulas for the case of light waves in vacuum are, however, strictly identical for these situations. Explain why this should be so. Would you expect the formulas to be strictly identical for the two situations in case of light travelling in a medium?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.15 NCERT Solutions for Class 12 Physics Chapter 10 Question-15 Additional Exercise

Ashok0210

Asked: March 21, 2021In: Class 12 Physics

Let us list some of the factors, which could possibly influence the speed of wave propagation: (i) Nature of the source. (ii) Direction of propagation. (iii) Motion of the source and/or observer. (iv) Wave length. (v) Intensity of the wave. On which of these factors, if any, does (a) The speed of light in vacuum, (b) The speed of light in a medium (say, glass or water), depend?

Class 12 Physics CBSE and UP Board Wave Optics Chapter-10 Exercise 10.14 NCERT Solutions for Class 12 Physics Chapter 10 Question-14 Additional Exercise

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

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In double-slit experiment using light of wavelength 600 nm, the angular width of a fringe formed on a distant screen is 0.1º. What is the spacing between the two slits?

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?

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