Why does reflected light from the Sun or Moon appear as a column in the body of water as shown? How would the reflected light appear if the water surface were perfectly smooth?

Q: A beam of light in air is incident at an angle of 45° to the surface of a rectangular block of clear…

A: According to law of reflection the incident and reflected angle is same. By using Snells law we can…

Q: At what angle is light inside crown glass completelypolarized when reflected from water, as in a…

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Q: Some types of glass have a range of indices of refraction of about 1.4 to 1.7. What is the range of…

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Q: Light travelling in glass (n=3/2) is incident on air (n=1). What is the angle of incident that…

A: The Snell's law is  n sin i = n' sin r where, n is refractive index of the medium in which the ray…

Q: A ray is incident upon a reflective surface at an angle of ??θi=42.9∘∘relative to the direction…

A: The Ist law of reflection (from a smooth surface) says that the angle of the reflected ray (θr) with…

Q: As the density of a liquid medium increases, would you expect the refractive index to increase or…

A: As the density of a  liquid medium increases, the number of particles  in   unit volume of liquid…

Q: What percentage of light is transmitted by two ideal Polaroids, one on lop of the other with their…

A: Assume that the both the Polaroids are vertical. The incoming is not polarized so that it will have…

Q: When ordinary light is inclined at an oblique angle upon water, what can you say about the reflected…

A: Unpolarized light contains polarization in all the directions, which means the unpolarised light has…

Q: When light is incident on an interface between two materials, the angle of the refracted ray depends…

A: When light is incident on an interface between two materials, the angle of the refracted ray depends…

Q: Is it possible for light to experience total internal reflection at the boundary between water and…

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Q: A ray of white light traveling through air enters a triangular prism that has an index of refraction…

A: Let ' i ' be the angle of incidence Apex angle = A

Q: . Taking R.I. of glass as 1.5 and water as 1.3 respectively. Find the polarising angles for a beam…

A: We need to compute- Polarising angles for (a) water to glass (b) glass to water (c) air to glass…

Q: More light is transmitted through a translucent material than through an opaque material. O True…

A: Transparent material : All light is transmitted through such a material. Translucent material : Some…

Q: Given that the refractive indices of a liquid for red, yellow and blue light are 1.512, 1.532, 1.543…

A: When a light passes from one medium to another it got refracted (changes the direction). And the…

Q: Sunlight and star light passing into and through the earth’s atmosphere is always bent towards the…

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Q: Suppose you are outside watching the sunset. The sky is mostly clear except for a few puffy clouds…

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Q: One technique for measuring the angle of a prism is A parallel beam of light is directed onto the…

A: To show: The angular separation of the two reflected beams is B=2A

Q: A fish is rising up vertically inside a pond with a velocity of 4 cm/sec and notices a bird that is…

A: Velocity of bird w.r.t. fish, vbf = 20 cm/s Velocity of fish, vf = 4 cm/s Refractive index of water,…

Q: The explanation given in your textbook for the color of the setting Sun should apply equally well to…

A: sunsets are redder than sunrises. Why?

Q: When light from air hits a smooth piece of glass (n = 1.5) with the ray perpendicular to the glass…

A: When light from air hits a smooth piece of glass at any angle (even other than perpendicular)A…

Q: A scuba diver sees light reflected from the water’ssurface. At what angle will this light be…

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Q: When a beam of light exits water it "speeds up". What happens to the angle of refraction?

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Q: A horizontal 5.0 mW laser beam that is horizontally polarized is incident on a polarizing sheet that…

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Q: Sunlight is incident on a surface of glass plate at glancing angle of 40°. The reflection ray is…

A: To find-R.I. of glass (μ)=?Given-Glancing angle (rp)=400

Q: Use Newton's Second Law () to solve for the mass of the apple.   Explain how you used Newton's…

A: Newton's second law states that force is equal to rate of change of momentum. Force = d(mv)/dt = ma…

Q: What is the critical angle for light traveling in a polystyrene (a type of plastic) pipe surrounded…

A: The expression for the critical angle is, Here, n2 is the index of refraction of air (n2=1.00) and…

Q: When unpolarized light strikes an interface and the reflected beam is completely polarized, what…

A: When some light is reflected it strikes a boundary between two mediums with different refractive…

Q: Light traveling in glass (n=3/2) is incident on air (n=1). What is the angle of incidence that cause…

A: From Snell's law for critical angle angle nglasssinθglass=nairsinθairnglasssinθglass=nairsin90°…

Q: An underwater light in a swimming pool is on the side of the pool, 1m below the surface of the…

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Q: why should the temperature of the sample be controlled during the refractive index?

A: The formula to calculate the refractive index of a material is, n=cv Here, n is the refractive…

Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: