15.PMMA oly methyLmethacrylak)IS a transparent themoplastic Itis used as carematenal as fiber ophes, which transMit hala aptcally.The fiber traps light withn t tube by internal reflectin. The index ot refadion of PMMA IS 149. A lgut beon apptoachus thu PMMA/ar interfaLe fram thu PMMA Side of the nterfaueshhats the agstangle (in deg), thata beam t ligll can make mth thenamal in PMiMA S0that Cxperientes totalinternal refleatin

Q: White light strikes the left face of a 30°-60°-90° glass prism along a normal to the surftace…

A: Angle of incidence (i) = 30oRefractive index of glass prism for red light (n) = 1.555Refractive…

Q: Light reflected at 62.5º from a gemstone in a ring iscompletely polarized. Can the gem be a diamond?…

A: a) Write the expression of Brewster’s law,

Q: A film is coated on the surface of a lens to maximize transmission at A = 440 nm. If it has index of…

A: Wavelength = 440 nm refractive index of film = 1.7 The thickness of the film = t

Q: r cach question, celoulate the intensity of light that makes it theough the system. Let the in itial…

A:

Q: While studying physics at the library late one night, younotice the image of the desk lamp reflected…

A: The law of reflection is states as the angle of incidence is equal to the angle of reflection, the…

Q: A certain kind of glass has nblue = 1.650 for blue light and nred = 1.610 for red light. If a beam…

A:

Q: A lens appears greenish yellow ( is strongest)when white light reflects from it. What minimum…

A: Given: The refractive index of the coating is 1.25. The refractive index of the glass is 1.52.…

Q: How thick (minimum) should the air layer be betweentwo flat glass surfaces if the glass is to appear…

A: for constructive interference,  2t=m+12λ

Q: What is Brewster's angle for an air-glass ( n= 1.59) surface?

A:

Q: Light beam will enter water at incident angle of 80°, before it enter a diamond crystal. What will…

A: Given:Incident angle =80°speed of light in diamond crystal=106 m/s

Q: (a) What is the minimum index of refraction for a glassor plastic prism to be used in binoculars…

A: n1=Refractive index of the glassn2=Refractive index of air=1θ1=Angle of incidence=45°θ2=Angle of…

Q: Building contractors often install double-glazed windows to prevent thermal energy (heat) from…

A:

Q: A light beam has a frwuency of 6 x 1015 Hz.   What is its wavelength?

A:

Q: The Bragg angle for d200 reflection of CaO is 20.20 for ʎ(CO) = 5 nm. Determine d200?

A:

Q: Building contractors often install double-glazed windows to prevent thermal energy (heat) from…

A:

Q: A plate glass window (n = 1.5) has a thickness of 4.6 mm. How long does it take light to pass…

A:

Q: During the Apollo XI Moon landing, a retroreflecting panelwas erected on the Moon’s surface. The…

A:

Q: Suppose the glass paperweight in Figure26-67 has an index of refraction n = 1.38. (a) Find the value…

A:

Q: Building contractors often install double-glazed windows to prevent thermal energy (heat) from…

A: Given Data  yg= 12.0 mmya =9.60 mmϕ = 40.00°na = 1.00

Q: What is the speed of light in water (n=1.33) and in glass (n=1.5)?

A:

Q: scam or ight is directed toward the water surface (n = 1.33) from below. The beam is incident at the…

A: Given: The refractive index of the water is 1.33. The incident angle in the water is 20o.

Q: Q/CI A ray of light of (700) nm wavelength in air, impinges on a piece of crown gls at an angle of…

A: Q.1C  Given that A ray of light goes from air to crown glass as shown below in the figure.…

Q: Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note…

A: The expression for the position of the object,

Q: ou are carefully examining a piece of diamond. You noticed ppears 2 mm below the surface of the…

A: Given values:- Apparent depth,(d)=2 mm ----(1) Refractive index of diamond,(ηd)=2 ----(2) Refractive…

Q: What is Brewster’s angle for an air–glass(n=1.56)surface?

A: n =1.56

Q: Referring to the electric room heater considered in the first example in this section, calculate the…

A: NOTE: Value of radius of curvature of the mirror is not given in the question. Final answer is given…

Q: Suppose you put on two pairs of Polaroid sunglasses withtheir axes at an angle of 15.0º . How much…

A: The intensity of the transmitted wave is related to the incident wave by the expression,

Q: How long does it take light to travel through a 3.0-mm-thick piece of window glass?

A: The refractive index (n) of the glass be defined as 1.5. Therefore, from the expression of the…

Q: For a light wave travelling from glass (n¡=1.46) to water(n=1.34), determine ne phase shift…

A: Given that: Index in air, n1 =1.46 Index in glass, n2 = 1.34 Angle of incidence, = 25 degree

Q: In the rough a circular aperture in opti cs, plot a graph between the val ue of m on the y-axis and…

A: Given:- mass(m)  tan(θ)  1.64 0.0025 2.69 0.0077 3.72 0.0099 d = λ/slop  d=λ / tan(θ)  d…

Q: Try this simple experiment on your own. Take two opaquecups, place a coin at the bottom of each cup…

A:

Q: A light ray enters the atmosphere of a planet and descend. | vertically to the surface a distance h…

A:

Q: menochremtgh monochromatic ght sereen wth ang seen screen with two sits Fig. A How does the light…

A: In figure A and B, monochromatic light falls on screen with two slits.

Q: A light' beam Come glass P.rism with 45° trapezota. with n = 1.8 prism Find exit sample フィt

A: We know,   Refractive index is given by n = sin i / sin r Where, i is the angle of incidence and r…

Q: What's the index of refraction of a material for which the speed of light within its 2.10x108 m/s?

A: Given, Speed of light, v=2.1×108m/s

Q: A light ray of wavelength 589 nm is incident at an angle Θ onthe top surface of a block of…

A:

Q: dex of refraction for red light in water is 1.331, and that for blue light is 1.340. If a ray of…

A:

Q: A light beam traveling in air with a wavelenght of 600 nm enters a glass block. If the index of…

A: wavelength λ in a medium of refractive index n  =λ0nwhere λ0 is the wavelength of that light in…

Q: A grating that has 3800 slits per cm produces a third-orderfringe at a 22.0° angle. What wavelength…

A: Given data *The number of slits per centimeter is N = 3800 cm-1 *The order of the fringe is m = 3…

Q: To a fish, the 4.00-mm-thick aquarium walls appear only 3.50 mm thick. What is the index of…

A: Given data The actual thickness of the aquarium is t = 4 mm. The thickness seen by the fish is t' =…

Q: If a liquid with refraction index 1.47 is introduced in the air region between the lens and the…

A: Putting a liquid of refractive index n between the lens the radius(R'N) of the Nth ring becomes…

Q: D) There is Z0onm sheet of n=li7 glassinaiy khat are the 2 lavest Areq vencies of gf- thet wold hare…

A: Given, Thickness of sheet,t=300 nm Refraction of glass,n=1.7 Angle of incidence and refraction,…

Q: A tronsp arent cglinder of a mirrored sur #1 Incoming ray ra dius R:2,00 m ha s face on its right…

A: Snell's law states that the ratio of sine of angle of incidence to the sine of angle of refraction…

Q: The index of refraction for red light in water is 1.331 and thatfor blue light is 1.340. If a ray of…

A: given:Refractive index for red light = 1.331Refractive index for blue light = 1.340angle of…

Q: How many centimetres is the light ray displaced after passing through the 5.50 cm thick sheet of…

A:

Q: The index of refraction for violet light in silica flint glass is s nR= 1.55. What is the angular…

A: Given data:-  We know that We have given that the index of refraction for violet light in silica…