Grade (11) Physics (စနစ်သစ်) - Chapter (7) Refraction of Light [Text Exercises] скачать в хорошем качестве

Grade (11) Physics (စနစ်သစ်) - Chapter (7) Refraction of Light [Text Exercises]

ပြဌာန်းစာအုပ်ပါ လေ့ကျင့်ခန်း များ 00:00 intro 00:12 No. (1) Choose the correct answer from the following. A. Light has only particle nature. B. Light has only wave nature. C. Light has both particle and wave nature. 01:30 No.(2) Choose the correct answer from the following. A. All optical phenomena can be explained by Huygens' wave theory. B. All optical phenomena can be explained by Newton's corpuscular theory. C. The statement gives in A. and B. are both wrong. 02:27 No.(3) If the velocity of light in a medium is 2.3 x 10/8 m/ s, find the refractive index of the medium. 04:12 No.(4) A ray of light in water has a wavelength of 4.42 x 10/7 m. What is the wavelength of that ray while passing through ice? (n = 1.33, nice = 1.31) 07:23 No.(5) When a ray of light is incident on the surface of a glass slab, both reflection and refraction of light take place. If the angle of incidence of the ray is 30° and the refractive index of glass is 1.5, find the angle between the reflected ray and the refracted ray. 16:18 No.(6) The path of a ray of light through one corner of a block of ice is shown below. Find (i) the angle of incidence on the face AB, (ii) the angle of refraction at this face, (iii) the refractive index of ice, (iv) the critical angle for ice and (v) determine whether the ray will emerge from the block of ice. 25:22 No.(7) A ray of light in air is incident on the surface of a glass slab 4 cm thick at an angle of 60°. It emerges from the slab and travels into the air from the other side of the glass slab. If the refractive index of glass is 1.5, find the lateral displacement between the incident ray and the emergent ray. 32:31 No.(8) A cube of ice of refractive index 1.31 is placed on a glass slab of refractive index 1.6. If a ray of light passing from the glass slab to the ice has an angle of incidence of 35°, will the ray enter the ice? 37:33 No.(9) (i) The angle of a glass prism is 60° and the angle of minimum deviation is 39°, find the refractive index of glass. (ii) If the refractive index of glass is 1.66 and the angle of prism is 60°. Find the angle of minimum deviation. 46:44 No.(10) What is the critical angle of Lucite - glass interface? The refractive index index of Lucite is 1.49 and that of glass is 1.66. To be totally reflected, which medium the light must start from?