You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can’t see your friend. How is it that you can hear her when she talks to you?

Q: Two students are separated by a 7 m partition wall in a room 10 m high. If both light and sound…

A: For diffraction to occur, the size of the obstacle or aperture should be comparable to the…

Q: Laser light is directed towards a pair of slits which are 2.50 x 10-2 mm apart. The light shines on…

A: Given: Given: Given the separation between the slits is 2.5×10-2 mm =2.5×10-5 m. The distance…

Q: A film on a lens with an index of refraction of 1.5 is 1.0 ×× 10−7−7 m thick and is illuminated with…

A:

Q: It is the bending of light as it passes through the edges of obstacles or barriers through small…

A: Diffraction is the bending of light as it passes through the edges of obstacles or barriers through…

Q: Holding your hand at arm’s length, you can readily block direct sunlight from your eyes. Why can you…

A: the size of the arm is greater than the wavelength of light and as an obstacle, ther is no…

Q: Thin films of soap sometime display an array of colours. This display is the result of: A)…

A: Thin films some time display array of colors.

Q: Select TRUE statement(s) about light. A. Light is a transverse wave. B. Light cannot travel in…

A:

Q: As Section 17.3 discusses, high-frequency sound waves exhibit less diffraction than low-frequency…

A:

Q: high-frequency sound waves exhibit less diffraction than low-frequency sound waves do. However, even…

A:

Q: The colour of a thin film is due to:   A) Scattering B) Dispersion C) Diffraction D) Interference

A: The color of thin film is because of interference. When we incident light rays on the thin oil film…

Q: Why does refraction occur?   a)  Particles mix between the two media, causing a zone of…

A: When the light passes from one media to another media, the light will bend due to this change of…

Q: If someone is around a corner from you, what is the mainreason you can hear him speaking but can’t…

A: Introduction: We know that Diffraction is a phenomenon of bending of a wave around the corners of…

Q: Huygens' principle states that each point of the medium becomes an individual source of circular…

A: The secondary waves are formed from the points on the wavefront. The points on same wavefront have…

Q: The phenomenon of several light waves interfering with one another under particular conditions,…

A:

Q: Red, green and blue light are incident on a thin film. The light that reflects from the surface…

A: Answer Thin film interference occurs when light wave reflecting off the top and bottom surfaces of a…

Q: 2. A narrow beam of ultrasonic waves reflects off the liver tumor as shown in the figure below. The…

A: Given,

Q: A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength…

A: THE SPEED OF THE RIPPLE IS GIVEN BY  V=fλ…

Q: Light of a single frequency goes through a narrow rectangular slit producing light and dark fringes…

A: 1) Here we are given with an intensity distribution curve  2) the question is about ten twin paradox…

Q: A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength…

A:

Q: What happens at the point of intersection of the path lengths of waves coming from two light…

A: Here we do not know the path difference in terms of wavelength. So we cannot say constructive or…

Q: A properly working human eye mainly uses the diffraction of light to focus light rays onto the back…

A: A properly working human eye mainly uses the diffraction of light to focus light raysonto the back…

Q: The colors on a thin film such as an oil slick are caused by which TWO of the following optical…

A: Refraction is the bending of the light when light moves from one medium to another.  Diffraction is…

Q: Light of wavelength 650 nm (in air) enters the water in a swimming pool. The speed of light in water…

A:

Q: Infra-red light has a wavelength of 800 nm. What is the frequency of this light?

A:

Q: The disturbance of light wavefront from the relatively separated upper and lower surfaces of a…

A: It is required to choose the correct option from the given.

Q: You shine a monochromatic red light of frequency 4.30 x 10^14 Hz into a flint glass. What are the…

A: We know, Wave length of light of frequency f in air is given by , λair = c/f c = 3 × 108 m/s Also…

Q: A pulse is traveling towards the boundary, from a less dense medium to a more dense medium. Hedium 1…

A: A) wave will reflect as well as transmitted from boundary

Q: Ultrasonic diagnostics may be used to locate a tumor in an organ such as the liver. The figure shows…

A:

Q: If you hold two fingers very close together and look at a brightlight, you see lines between the…

A: The bending of light around the corners of obstacles is known as the diffraction of light which is a…

Q: An automatic focus camera is able to focus objects using ultrasonic sound waves.The camera sends out…

A: Given Velocity v = 340 m/s duration t = 0.150 s Asked Distance d = ?

Q: Which of the following refers to the separation of white light into its component colors when it is…

A: Which of the following refers to the separation of white light into its component colors when it is…

Q: A film material with n = coating is 380nm thick. White light is incident perpendicularly to the…

A: Given data: Refractive index of flat glass = 1.55 Refractive index of a film material = 1.25 Film…

Q: In the figure below, assume that two waves of light in the air are innitially in phase. One wave…

A: The optical path length is defined as the distance that light would travel if it were traveling in a…

Q: A riverside warehouse has several small doors facing the river. Two of these doors are open as shown…

A: Length , L = 120 m Wavelength , λ = 1.7 m To find = Distance between the doors

Q: A narrow beam of ultrasonic waves reflects off the liver tumor in the figure below. If the speed of…

A:

Q: As Section 17.3 discusses, high-frequency sound waves exhibit less diffraction than low-frequency…

A: Given, Highest frequency, f=2x104 Hz Speed of sound, v=343 m/s Width of doorway, W=1.1m

Q: . Real life example of Constructive Interference A. Light reflected from a film of oil floating on…

A: (6) Light reflected from a film of oil floating on water is best real life example of interference…

Q: If we make an object shadow on the wall, it will appear some shadows. The picture shows the wave…

A: Light from the edge of material is subjected to diffraction

Q: You are sitting at the kitchen table diligently doing your homework when you hear your younger…

A: Diffraction refers to the spreading of wave around a small obstacle, reflection is when a wave hits…

Q: A narrow beam of ultrasonic waves reflects off the liver tumor in the figure below. If the speed of…

A:

Q: Ultrasonic diagnostics may be used to locate a tumor in an organ such as the liver. The figure shows…

A:

Q: The lightbulb as shown is 50 cm from a mirror. It emits 1.5 W of visible light. A small barrier…

A: Given:-

Q: The ship in Figure P14.39 travels along a straight line parallel to the shore and a distance d = 600…

A: Formula for to calculate the distance between point A and D is,

Q: Red, green and blue light are incident on a thin film. The light that reflects from the surface…

A: When light waves are incident on a thin film then it gets reflected by its upper interface and lower…

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.