College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:(a) A small light fixture on the bottom of a swimming pool is 0.86 m below the surface. The light emerging from the still water forms a circle on the water surface. What is the
diameter of this circle? (Give your answer, in m, to at least two decimal places.)
m
(b) What If? If a 1.58 cm thick layer of oil (noil
1.35) is spread uniformly over the surface of the water, what is the diameter of the circle of light emerging from the swimming
pool? (Give your answer, in m, to at least two decimal places.)
m
=
Transcribed Image Text:The figure below shows the path of a light beam through several slabs with different indices of refraction. (n4 = 1.01)
(a) If 0₁
=
0₁
O
102
n = 1.60
n = 1.40
n = 1.20
114
35.0°, what is the angle 02 of the emerging beam?
(b) What must the incident angle 0₁ be to have total internal reflection at the surface between the medium with n = 1.20 and the medium with n4 = 1.01?
O
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- White light strikes the left face of a 300-60°-90° glass prism along a normal to the surface (so there is no refraction there). The light moves horizontally through the prism and strikes the right face at an angle of 30.00° to the normal. As the light leaves the prism it is refracted at the right face. DO ALL CALCULATIONS TO 4 SIGNIFICANT FIGURES! What is the DIFFERENCE in the refracted angles for red light (ned = 1.567) and violet (niolet = 1.613)? Find (8, - e,), where e, and e, are the angles of refraction for violet and red light. 313 PMarrow_forwardWhat is the relation between A×B and BxA, The magnitudes are the same but they are in opposite directions, i.e., (Ã×B)=-(BxÃ) The order of the vectors in a cross product doesn't matter so they are the same, i.e., (ÃxB)=(BxÃ)arrow_forwardChapter 25: Problem 5: In the year 1178, five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glow in and around it. It is hypothesized that this event created the crater Giordano Bruno, which is right on the edge of the area we can usually see from Earth. a) How long after the asteroid hit the Moon, which is 3.84 ×10⁵ km away, would the light first arrive on Earth in seconds?arrow_forward
- Lunar astronauts placed a reflector on the Moon’s surface, from which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. What percent error is this, given the average distance to the Moon is 3.84 × 108 m?arrow_forward2. (a) A ray of light in air is incident on an air-to-glass boundary at an angle of exactly 30° with the normal. If the index of refraction of the glass is 1.65, what is the angle of the refracted ray within the glass with respect to the normal?arrow_forward
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