Q3 : What is the intensity of a spot laser W/m that used for Medical treatments, when 90.0% absorbed, puts 500J of energy into a circular spot 2.00mm in diameter in 4.00s? Ans: 1.95 x10' W/m2

Q: 11) A 0.5 mW He-Ne laser beam with wavelength ho = 632.8 nm is initially traveling in a vacuum…

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Q: A 75-kW radio station broadcasts its signal uniformly in all directions. (a) What is the average…

A: The intensity of the signal at a distance r from the antenna can be given as, Here, P is the power…

Q: A helium–neon laser, radiating at 632.8 nm, has a power output of 3.0 mW. The beam diverges…

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Q: You measure the wavelength of a wave which is generated by a 512 cps tuning fork to be 66.0 cm. What…

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Q: 4) The Earth has a radius of 6.38×106m and is 1.50×1011m from the sun. The intensity of sunlight at…

A: Given:- Earth has a radius (Rc) = 6.38×106m  Distance from the sun (Res)=1.50×1011m  The intensity…

Q: An FM radio station broadcasts at 101.1 MHz. a) What is the wavelength of the waves it produces?…

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Q: 2. Given the equation of the wave: yk, tj-1.0mCos(2nm x What is: a) wavelength, b.) frequency, c.)…

A: The general equation for wave function is yx,t=Acoskx-ωt+ϕ , where A is the amplitude , k=2πλ is the…

Q: The Intensity of solar radiation at the Earth's orbit is 1370 W/m2. However, because the atmosphere,…

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Q: A dark blue cylindrical bottle is 22 cm high and has a diameter of 7.0 cm. It is filled with water.…

A: Given A dark blue cylindrical bottle is 22 cm high and has a diameter of 7.0 cm. It is filled with…

Q: Red Visible light has a wavelength of 6.5x10^-7m what is the frequency in s^-1

A: Required : Frequency of light

Q: 07) Normalize the wave functions: A) BY Y(x)=N(2A

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Q: A green laser pointer has a power output of 112 mW. (a) If the laser beam is projected onto a…

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Q: *59. ssm mmh A dish of lasagna is heing heated in a microwave oven. The ef- fective area of the…

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Q: 03: What is the intensity of a spot laser W/m that used for Medical treatments, when 90.0% absorbed,…

A: Given  % absorption = 90% And this 90% puts energy =500J So net emitted energy is =555.56J Area of…

Q: The wavelength of the yellow-orange light from sodium-vapor streetlights is 589nm. What is its…

A: The wavelength of the yellow-orange light from sodium-vapor streetlights is 589nm.  The equation for…

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: As we know that the wavelength is called to be the ratio of the speed of the wave to its frequency.…

Q: 1)A SPeaker is placed in open area Determine how far you must Stand From that Speaker to receive an…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A bat flying at 5.00 m/s is chasing an insect flying in the same direction. If the bat emits a…

A: Given dataVelocity of bat vbat = 5 m/sVelocity of sound vsound = 340 m/sInitial frequency fo = 40.0…

Q: The world’s most powerful laser is the LFEX laser in Japan. It can produce a 2 petawatt (2 × 1015 W)…

A: To determine: The light intensity of the laser spot

Q: microwave oven can heat 330 g of water from 25.0°C to 100.0°C in 2.60 min. The specific heat of…

A: Given  Mass of water m=0.330kg Rise in temperature ∆T=100-25=750 C Time t=2.60 min=2.60×60=156…

Q: Light travels at a velocity of c=3.0x10^8 m/s in a vacuum. Green light has a wavelength of…

A: Light travels at a velocity of c=3.0x10^8 m/s in a vacuum. Green light has a wavelength of…

Q: 1A SPeaker is placed in open area Determine how far you must Stand From that Speaker to receive an…

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Q: Write an equation representing a linearly polarized wave with an angular frequency propagating in…

A: Given: Angle = 30 degree

Q: A beam of light, traveling at speed 3*108 m/s, has wavelength 420 nm.  What is its frequency?

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Q: a 9 Student Center A Salt BBLearn O My NAU P * Sodexo AcademicWorks, Inc. My Bb Learn Tab 1... w…

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Q: What is the intensity, in watts per square meter, of a laser beam that is 90.0% absorbed by a 2.1-mm…

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Q: a solar panel is a square 0.5m on a side and absorbs all the light that hits it. It the panel has a…

A: Force required = weight of solar panel Force required(F) = mg  Here, F = required force  m = mass of…

Q: LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. A…

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Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: given data  f=60 kHz v=340 m/s

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given,        frequency (f) = 51.0 kHz                            =  5.1 * 104 Hz   speed of sound…

Q: Light waves travel in a vacuum at a speed of 300,000 km/s. (a) The frequency of the longest visible…

A: Given values: Speed of light in vacuum, c=3×108 m/s The frequency of red light, fred=4×108  MHz…

Q: 8) A 1.69x10 Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.21x10*.…

A: a) The expression for find index of material is n=cv Substitute values in the above equation…

Q: Medical Application - (a) What is the intensity in W/m2 of a laser beam used to burn away cancerous…

A: (a)  The intensity of a laser beam is given as, Here, P and A represent the power output and the…

Q: 5. Consider the dielectric displacement D corresponding to a plane wave of wave vector k. Use…

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Q: (a) A moving neutron has a wavelength of 5.29 x 10- m. What is its speed (in m/s)? m/s (b) A neutron…

A: (a) Given, Wavelength of neutron λ = 5.29×10-7m To find The velocity of the neutron, Use De…

Q: The maximum amplitude of an A.M. wave is found to be 15 V while its minimum amplitude is found to be…

A: Modulation index is defined as the ratio of change of amplitude of carrier wave to the amplitude of…

Q: Some of the most powerful lasers in the worldare used in nuclear fusion experiments. The NOVA laser…

A: Given Data: The energy produced by NOVA laser is, E=40.0 kJ The time produced by the laser NOVA is,…

Q: A guitar string is 0.620 m long, and oscillates at 234 Hz. If a player uses his finger to shorten…

A: Given Initial length of the string (l1) =0.620 mInitial frequency( f1)=234 HzFinal length of the…

Q: Microwave ovens typically cook food using microwaves with frequency 2.45 GHz. What is the…

A: (a) Write the relation for wavelength and frequency of microwaves

Q: Q1:-(a) Certain ocean waves travel with a phase velocity Vp v(g/27), where g is the acceleration due…

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Q: tical tweezers use light from a laser to move single atoms and molecules around. Suppose the…

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Q: The Earth has a radius of 6.38×10^6m and is 1.50×10^11m from the sun. The intensity of sunlight at…

A: The relation between intensity and distance is as follows: