A 42.9 ft American flag casts a 253.1 ft shadow.  In the same sunlight, a 6.2-foot man casts what length shadow? a 3.7 feet b 38 feet c 36.6 feet d 30.5 feet

Q: The speed of light in a material is is 2.2 x 108 m/s. What is the index of refraction?

A: Answer:- 1.36   Refractive index n of a material is a dimensionless number. It tells us how light…

Q: ray of light hits the surface between air and an unknown material at an angle A of 46.8°. The index…

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Q: A swimmer underwater is able to see the sun at 61.0° above the horizontal. At what angle above the…

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Q: If the index of refraction of a plastic prism is 1.40 ± 0.01, what is the speed of light as it…

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Q: What is the speed of light in water if the index of refraction is 1.33? O 2.26x108 m/s O 3.0x10® m/s…

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Q: What is the speed of light in oil, with index of refraction 1.5 O 2.0x10^8 m/s O 3.0x10^8 m/s O…

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Q: What is the speed of light in a precious stone that has an index of refraction of 2.7980? m/s

A: CONCEPT: Refractive index is defined as the ratio of speed of light in air medium to the speed of…

Q: A 5.0-ft-tall girl stands on level ground. The sun is 25° above the horizon. How long is her shadow?

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Q: The speed (V) of light in any transparent material is less than the speed of light c in a vacuum: V…

A: The speed of light in alcohol is valcohol=cnalcohol=3×108 ms1.36=2.2×108 ms

Q: A loaf of bread at an initial temperature of 15C is placed in an oven at 80C. If after 30s, the…

A: Initial temperature of bread = 15oC temperature of oven = 80oC time taken = 30 seconds temperature…

Q: The index of refraction of a certain medium is 1.5. What is the speed of light in that medium? O 1.0…

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Q: Index of refraction is defined as the speed of light in a vacuum divided by the speed of light in…

A: Given: speed of light in vacuum, c = 3.0 x 108 m/s speed of light in glass, v = 1.50 × 108 m/s

Q: The speed of light in a particular type of glass is 1.49  108 m/s. What is the index of refraction…

A: Given information: The speed of the light in the glass (v) = 1.49 ×108 m/s The actual speed of light…

Q: A light beam is traveling through an unknown substance. When it strikes a boundary between that…

A: Angle of reflection = 33° Angle of refraction = 47° Refractive index of air = 1

Q: The index of refraction for crown flint glass is 1.171. What is the speed of light in crown flint…

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Q: 21. What is the speed of light in a liquid with an index of refraction 1.47? (Answer: 2.04x10³ m/s)…

A: speed of light in a medium of refractive index 'n' is, v=cn here,  c=3×108m/sn=1.47Therefore,…

Q: Figure 2 shows a ray of iight x in glass refracted into air. If the speed of light in air is 3.0 x…

A: Write the given values of the problem- Speed of the light in air is (v1) v1=3.0×108 ms-1

Q: The speed of light in ice is 2.275 x 10^8 m/s. What is the index of refraction of ice?

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Q: A ray of light is traveling through air (n = 1.00) towards a Lucite block (n = 1.40) in the shape of…

A: Given information: Here, nair and nlucite are the refractive index of the air and the Lucite block.

Q: The sun is 60° above the horizon. Rays from the sun strike the still surface of a pond and cast a…

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Q: Find the speed of light through an emerald. The index of refraction for an emerald is 1.58. Use the…

A: (given) Index of refraction (n) for an emerald = 1.58               Speed of light (c) in vacuum = 3…

Q: The speed of light in a particular type of glass is 1.40  108 m/s. What is the index of refraction…

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Q: The speed of light in a particular type of glass is 1.68  108 m/s. What is the index of refraction…

A: We have refractive index = speed of light in vacuumspeed of light in glass

Q: 4. A ray of light strikes a surface and is reflected such that the angle between the incident ray…

A: (4) Angle of incident = i Angle of reflection = r Angle of incidence = Angle of reflection Here,…

Q: A spotlight is on the ground 20 ft away from a wall and a 6 ft tall person is walking towards the…

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Q: An underwater scuba diver sees the Sun at an apparent angle of 33° from the vertical. What is the…

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Q: A light beam from the Earth is reflected by an object in space. If the round trip for the beam takes…

A: let the distance between the object and earth is ---' d ' m. For round trip light beam has to travel…

Q: A 20 story building casts a 350 m shadow over level ground. Each story of the building is 3.7 m in…

A: The height of the 20 story building is, H= 20×3.7 m= 74 m. The length of the shadow of the building…

Q: When certain light rays pass from a vacuum into a block of an unknown material, the measured index…

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Q: The speed of light in a particular type of glass is 1.72 x 10^8 (10 to the eighth power) m/s. What…

A: We know that,Refractive index of glass, n=cvwhere, speed of light, c=3×108 m/sSpeed of light in…

Q: The speed of light in a particular type of glass is 1.72 x 10^8 (10 to the eighth power) m/s. What…

A: Write the formula for the refractive index.