33. Geometric Optics
Refraction of Light & Snell's Law
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- Multiple ChoiceSuppose a ray of light starts in air, then enters a slab of diamond with parallel faces, and then exits again. If the ray entered the diamond at an angle from a line normal to the diamond slab, what is true of the final angle from normal ?580views
- Multiple ChoiceLight shines from a laser in air down into water. If the laser beam in air makes an angle of with the water's surface, what angle will it make with the surface under water?606views
- Multiple ChoiceA graduated cylinder is filled with of oil floating on of water. How long, in nanoseconds, does it take light to travel from the top of the oil to the bottom of the water?483views
- Multiple ChoiceA light ray, moving in air, is incident on a piece of plastic at an angle of 23° with respect to the normal. Inside the plastic the ray travels at an angle of 16° with respect to the normal. What is the index of refraction of the plastic?716views
- Textbook Question
(a) A tank containing methanol has walls 2.50 cm thick made of glass of refractive index 1.550. Light from the outside air strikes the glass at a 41.3° angle with the normal to the glass. Find the angle the light makes with the normal in the methanol. (b) The tank is emptied and refilled with an unknown liquid. If light incident at the same angle as in part (a) enters the liquid in the tank at an angle of 20.2° from the normal, what is the refractive index of the unknown liquid?
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Light of a certain frequency has a wavelength of 526 nm in water. What is the wavelength of this light in benzene?
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A light beam travels at 1.94 × 108 m/s in quartz. The wavelength of the light in quartz is 355 nm. If this same light travels through air, what is its wavelength there?
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A beam of light has a wavelength of 650 nm in vacuum. What is the wavelength of these waves in the liquid?
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