University Physics Volume 3
17th Edition
ISBN: 9781938168185
Author: William Moebs, Jeff Sanny
Publisher: OpenStax
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Textbook Question
Chapter 1, Problem 16CQ
How do wave effects depend on the size of the object with which the wave interacts? For example, why does sound bend around the corner of a building sil1e 1igJt does not’
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Chapter 1 Solutions
University Physics Volume 3
Ch. 1 - Check Your Understanding Table 1.1 shows that...Ch. 1 - Check Your Understanding In Table 1.1, the solid...Ch. 1 - Check Your Understanding At the surface between...Ch. 1 - Check Your Understanding In the preceding example....Ch. 1 - Check Your Understanding in Example 1.6, we had...Ch. 1 - Check Your Understanding Although we did no...Ch. 1 - Check Your Understanding What happens at...Ch. 1 - Under what conditions can light be modeled like a...Ch. 1 - Why is the index of refraction always greater than...Ch. 1 - Does the fact that the light flash from lightning...
Ch. 1 - Speculate as to s1at physical process might be...Ch. 1 - Using the law of reflection, explain how powder...Ch. 1 - Diffusion by reflection from a rough surface is...Ch. 1 - Will 1igt change direction toward or away from the...Ch. 1 - Exp1ain why an object in water always appears to...Ch. 1 - Explain why a person’s legs appear very short when...Ch. 1 - Explain why an oar that is partially submerged in...Ch. 1 - A ring with a colorless gemstone is dropped into...Ch. 1 - The most common type of mirage is an illusion that...Ch. 1 - How can you use total internal reflection to...Ch. 1 - Is it possible that total internal reflection...Ch. 1 - A high-quality diamond may be quite clear and...Ch. 1 - How do wave effects depend on the size of the...Ch. 1 - Does Huygens’s principle apply to all types of...Ch. 1 - If diffraction is observed for some phenomenon, it...Ch. 1 - Can a sound wave in air be polarized? Explain.Ch. 1 - No light passes through two perfect polarizing...Ch. 1 - Explain what happens to the energy carried by...Ch. 1 - When particles scattering light are much smaller...Ch. 1 - Using the information given in the preceding...Ch. 1 - When light is reflected at Brewster’s angle from a...Ch. 1 - If you lie on a beach looking at the water with...Ch. 1 - What is the speed of light in water? In glycerine?Ch. 1 - What is the speed of light in air? In crown glass?Ch. 1 - Calculate the index of refraction for a medium in...Ch. 1 - In what substance in Table 1.1 is the speed of...Ch. 1 - There was a major collision of an asteroid with...Ch. 1 - Components of some computers communicate with each...Ch. 1 - Compare the time it takes for light to travel 1000...Ch. 1 - How far does light travel underwater during a time...Ch. 1 - Suppose a man stands in front of a mm-or as show...Ch. 1 - Show that when light reflects from two mirrors...Ch. 1 - On the Moon’s surface, lunar astronauts placed a...Ch. 1 - A flat mirror Is neither converging nor diverging....Ch. 1 - A light beam in air has an angle of incidence of...Ch. 1 - A light beam in air is incident on the surface of...Ch. 1 - When a light ray crosses from water into glass, it...Ch. 1 - A pencil flashlight submerged in water sends a...Ch. 1 - Light rays from the Sun make a 30° angle to the...Ch. 1 - The path of a light beam in air goes from an angle...Ch. 1 - A scuba diver training in a pool looks at his...Ch. 1 - (a) Using information in the preceding problem,...Ch. 1 - Verify that the critical angle for light going...Ch. 1 - (a) At the end of Example 1.4, it was stated that...Ch. 1 - An optical fiber uses flint glass clad with crown...Ch. 1 - At that minimum angle will you get total internal...Ch. 1 - Suppose you are using total internal reflection to...Ch. 1 - You can determine the index of refraction of a...Ch. 1 - A ray of light, emitted beneath the surface of an...Ch. 1 - Light rays fall normally on the vertical surface...Ch. 1 - (a) What is the ratio of the speed of red light to...Ch. 1 - A beam of white light goes from air into water at...Ch. 1 - By how much do the critical angles for red (660...Ch. 1 - (a) A narrow beam of light containing yellow (580...Ch. 1 - A parallel beam of light containing orange (610...Ch. 1 - A ray of 610-nm light goes from air into fused...Ch. 1 - A narrow beam of light containing red (660 nm) and...Ch. 1 - A narrow beam of white light enters a prism made...Ch. 1 - What angle is needed between the direction of...Ch. 1 - The angle been the axes of two polarizing filters...Ch. 1 - Two polarizing sheets P1 and P2 are placed...Ch. 1 - Suppose that in the preceding problem the light...Ch. 1 - If you have completely polarized light of...Ch. 1 - What angle would the axis of a polarizing filter...Ch. 1 - At the end of Example 17, it was stated that the...Ch. 1 - Show that if you have three polarizing filters,...Ch. 1 - Three polarizing sheets are placed together such...Ch. 1 - In order to rotate the polarization axis of a beam...Ch. 1 - It is found that when light traveling in water...Ch. 1 - At what angle ill lig1t reflected from diamond be...Ch. 1 - What is Brewster’s angle for light traveling in...Ch. 1 - A scuba diver sees light reflected from the...Ch. 1 - From his measurements, Roemer estimated that it...Ch. 1 - Cornu performed Fizeau’s measurement of the speed...Ch. 1 - Suppose you have an unknown clear substance...Ch. 1 - Shown below is a ray of light going from air...Ch. 1 - Considering the previous problem, show that 3is...Ch. 1 - At what angle is light inside crown glass...Ch. 1 - Light reflected at 55.6° from a window is...Ch. 1 - (a) Light reflected at 62.5° from a gemstone in a...Ch. 1 - If bis Brewster’s angle for light reflected from...Ch. 1 - Unreasonable results Suppose light travels from...Ch. 1 - Unreasonable results Light traveling from water to...Ch. 1 - If a polarizing filter reduces the intensity of...Ch. 1 - Suppose you put on two pairs of polarizing...Ch. 1 - (a) On a day when the intensity of sunlight is...Ch. 1 - Light shows staged with lasers use moving mirrors...Ch. 1 - Consider sunlight entering Earth’s atmosphere at...Ch. 1 - A light ray entering an optical fiber surrounded...Ch. 1 - A light ray falls on the left face of a prism (see...Ch. 1 - If the apex angle in the previous problem is 20.0°...Ch. 1 - The light incident on polarizing sheet P1is...Ch. 1 - Prove that if I is the intensity of light...
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- What is the necessary condition on the path length difference between two waves that interfere (a) constructively and (b) destructively?arrow_forwardCheck Your Understanding When a guitar string is plucked, the guitar string oscillates as a result of waves moving through the string. The vibrations of the string cause the air molecules to oscillate, forming sound waves. The frequency of the sound waves is equal to the frequency of the vibrating string. Is the wavelength of the sound wave always equal to the wavelength of the waves on the string?arrow_forwardA sunbather stands waist deep in the ocean and observes that six crests of periodic surface waves pass each minute. The crests are 16.00 meters apart. What is the wavelength, frequency, period, and speed of the waves?arrow_forward
- Consider a sound wave moving through the air modeled with the equation s(x,t)=6.00nmcos(54.93m1x18.84103s1t) . What is the shortest time required for an air molecule to move between 3.00 nm and -3.00 nm?arrow_forwardSound is more effectively transmitted into a stethoscope by direct contact rather than through the air, and it is further intensified by being concentrated on the smaller area of the eardrum. It is reasonable to assume that sound is transmitted into a stethoscope 100 times as effectively compared with transmission though the air. What, then, is the gain in decibels produced by a stethoscope that has a sound gathering area of 15.0 cm2, and concentrates the sound onto two eardrums with a total area of 0.900 cm2 with an efficiency of 40.0% ?arrow_forwardWhat is the difference between propagation speed and the frequency of a mechanical wave? Does one or both affect wavelength? If so, how?arrow_forward
- A riverside warehouse has several small doors facing the river. Two of these doors are open as shown in Figure P27.17. The walls of the warehouse are lined with sound-absorbing material. Two people stand at a distance L = 150 in from the wall with the open doors. Person A stands along a line passing through the midpoint between the open doors, and person B stands a distance y = 20 m to his side. A boat o the river sounds its horn. To person A, the sound is loud and clear. To person B, the sound is barely audible. The principal wavelength of the sound waves is 5.00 m. Assuming person B is at the position of the first minimum, determine the distance d between the doors, center to center.arrow_forwardSix members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still hear the music and perform the combinations in the water perfectly. One day, they were asked to leave the pool so the dive team could practice a few dives, and they tried to practice on a mat, but seemed to have a lot more difficulty. Why might this be?arrow_forwardDuring a 4th of July celebration, an M80 firework explodes on the ground, producing a bright flash and a loud bang. The air temperature of the night air is TF=90.00F . Two observers see the flash and hear the bang. The first observer notes the time between the flash and the bang as 1.00 second. The second observer notes the difference as 3.00 seconds. The line of sight between the two observers meet at a right angle as shown below. What is the distance x between the two observers?arrow_forward
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