Your landscape maintenance person is only allowed by state law to trim branches from trees up to a height of 15 feet without having a special license for tree work. You want todetermine the height of a tree in your back yard to see if he can trim it all the way to the top. On a sunny day, you notice that the tree casts a shadow on the flat ground. Armedwith a tape measure and a protractor, you run out into your back yard. The length of the shadow cast by the tree is 10.6 ft. You quickly set up your protractor and measure that theSun is 57.2° above the horizon. What is the height of the tree (in ft)? Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-¹⁹ J.(a) a photon having a frequency of 7.80 x 1017 HzeV(b) a photon having a wavelength of 2.00 x 10² nmeV

Answered: Image /qna-images/answer/8e2dafb9-af18-4d8f-9486-3c02a0a0b625.jpg

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-19 J. (a) a photon having a frequency of 7.80 x 10¹7 Hz eV (b) a photon having a wavelength of 2.00 x 10² nm eV

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-19 J. (a) a photon having a frequency of 7.80 x 10¹7 Hz eV (b) a photon having a wavelength of 2.00 x 10² nm eV

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: photon has 2.90 eV of energy. What is the photon’s wavelength? (h = 6.626 x 10-34, 1 eV = 1.6 x…

A: Energy of photon: E=2.90 eV=2.90×1.6×10-19 J

Q: Photons of a certain ultraviolet light have an energy of 6.96 x 109 J. (a) What is the frequency of…

A: a) The expression for the frequency is, f=Ehf=6.96×10-19J6.63×10-34Jsf=1.04×1015Hz

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

Q: Find the energy (in eV) of a photon with a frequency of 2.7 ✕ 10^16 Hz.

A: Solution:- Given frequency f=2.7 ×1016 Hz

Q: A recent study found that electrons that have energies between 3.15 eV and 20.9 eV can cause breaks…

Q: A photon in a laboratory experiment has an energy of 4.1 eV. What is the frequency of this photon?…

Q: A metal absorbing a photon with energy 6.00 eV emits an electron that carries an initial kinetic…

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

Q: (a) Calculate the wavelength of light in vacuum that has a frequency of 5.37 x 1015 Hz. nm (b) What…

A: a) wavelength of light, =?b) wavelength in carbon tetrachloride, =?c) Energy of photon, E=?

Q: The photoelectric equation for the kinetic energy of a photoelectron is, following Einstein, E < hf…

A: Given that Work function W = 3.2 X 10-19 J Speed of emitted electrons u = 8 X 105 m/s

Q: A particle is in a two-level system with energy levels of E₁ = 2 eV and E₂ = 4 eV. The particle is…

A: Initial energy level of the particle (ground state): E1 = 2 eVHigher energy level of the particle:…

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

Q: 2. Light of frequency 7.40 × 10¹4 Hz ejects electrons from surface (A) with a maximum kinetic energy…

A: Given, The frequency of the light, f=7.40×1014 Hz The kinetic energy of electrons ejected by surface…

Q: A typical Blu-Ray player uses a gallium nitride (GaN) diode laser with a wavelength of 405.0 nm.…

A: Energy of a photon is given by E=hcλ. Where his the planks constant, c is the speed of light, and…

Q: Find the energy of a photon having a frequency of 6.00 x 1017 Hz. Express your answers in units of…

Q: Calculate the wavelength of a photon that has an energy of 4.96 eV

A: Given data: Energy (E) = 4.96 eV Required: The wavelength (λ) of the photon

Q: A microwave oven operates by emitting light of frequency of 2.45 GHz. What is the energy of a photon…

A: Frequency of the emitted photon ϑ = 2.45 GHz = 2.45×109 Hz Energy of a photon with a frequency ϑ is…

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

A: (a) Frequency of photon is (b) Wavelength is Note:Planck's constant is Speed of light is Find:Energy…

Q: What is the energy (in eV) of the following photons? A 450-nm photon of blue light?

Q: Photons with an energy of 7.0 electron Volts (eV) strike a photo-emissive surface causing an…

A: Given:when photon has energyE1 = 7.0 eVkinetic energy of electron will be, K1 = 3.0 eVAsked:if…

Q: A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is…

Q: The frequency of orange light is 5.01 x 1014 Hz. How much energy does a photon of orange light…

A: To calculate the energy carried by a photon of orange light, we can use the equation:E = hf,where E…

Q: The human eye is sensitive to wavelengths from about 400 nm to 700 nm. What is the corresponding…

Q: What is the energy of a photon that has the same wavelength as a 12-eV electron? (Ans. 3.5 keV)

Q: 4.15-volt battery is connected across a parallel-plate capacitor. Illuminating the plates with…

Q: A dental X-ray typically affects 195 g of tissue and delivers about 3.85 µJ of energy using X-rays…

A: The mass of tissue is m=195 g=0.195 kg Delivered energy is E=3.85 μJ=3.85×10-6 J The wavelength of…

Q: infrared photon has a frequency of 8.3 E12 Hz. What is the energy of this photon, expressed in meV…

Concept explainers

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”

Question

Your landscape maintenance person is only allowed by state law to trim branches from trees up to a height of 15 feet without having a special license for tree work. You want to
determine the height of a tree in your back yard to see if he can trim it all the way to the top. On a sunny day, you notice that the tree casts a shadow on the flat ground. Armed
with a tape measure and a protractor, you run out into your back yard. The length of the shadow cast by the tree is 10.6 ft. You quickly set up your protractor and measure that the
Sun is 57.2° above the horizon. What is the height of the tree (in ft)?

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-¹⁹ J.
(a) a photon having a frequency of 7.80 x 1017 Hz
eV
(b) a photon having a wavelength of 2.00 x 10² nm
eV

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 x 10 ¹9 J. (a) a photon having a frequency of 2.60 x 10¹7 Hz 911 X Calculate the energy of a photon at the given frequency and express your answer in electron volts: ev (b) a photon having a wavelength of 5.60 x 10² nm ev Need Help? Read It Master it
Water absorbs infrared radiation with wavelengths near 4.55 mm. Suppose this radiation is absorbed by the water and converted to heat. A 2.25-L sample of water absorbs infrared radiation, and its temperature increases from 17.0°C to 35.0°C. How many photons of this radiation are used to heat the water?
An infrared thermometer (or pyrometer) detects radiation emitted from surfaces to measure temperature. Using an infrared thermometer, a physician measures a patient's skin temperature as 32.7°C. What is the wavelength (in µm) of photons emitted with the greatest intensity from the patient's skin? (Enter your answer to at least two decimal places.) answer in µm
Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-¹⁹ J. (a) a photon having a frequency of 7.60 × 10¹7 Hz 3.1E+3 eV (b) a photon having a wavelength of 4.60 x 10² nm X eV 2.95
The energy flux of sunlight reaching the surface of the earth is 1.388 × 103 W/m2. How many photons (nearly) per square metre are incident on the Earth per second? Assume that the photons in the sunlight have an average wavelength of 550 nm.
What is the energy of a photon with a frequency of 7.4*10^15 Hz? An electron emits a photon by undergoing an energy transition of 2.84*10^-19 J. What is the wavelength of this photon.
Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 x 10 19 J. (a) a photon having a frequency of 7.00 x 1017 Hz ev (b) a photon having a wavelength of 5.20 x 102 nm ev
Find the energy (in ev) of a photon with a frequency of 8.3 × 1016 Hz. ev
An x-ray source generates EM radiation with a wavelength of 45.0 pm (10-12 m). h = c = qelectron = e = 1.602x10-19 C, ke = 8.99x109 N·m2/C2, What is the energy associated with this x-ray wave? What potential difference must be applied to the electrons in the x-ray tube to produce this x-ray? The air gap in the x-ray tube is 30.0 μ How much charge must be present on the plates to create this potential difference for a single electron? What is the force on a single electron when it is at 30.0 μm from the positive plate?
A laser emits 6.85 x 1018 photons per second in a thin beam with circular cross section having diameter 1.2 mm. The wavelength of the photons is 514.5 nm. What is the laser output power? (enter your answer with 3 significant figures)
A laser pointer used in the classroom emits light at 4650 Ă, at a power of 4.00 mW. (One watt is the SI unit of power, the measure of energy per unit of time. 1 W = 1 J/s). How many photons are emitted from the pointer in 115 seconds? 4.27 х 10-19 1 3 4 6. C 7 8 9. +/- х 100
A light source is used in a photoelectric experiment. The metal copper is illuminated, if a stopping potential of 1.03 V is required, what is the energy of the light shining on the metal in eV? Answer to FIVE decimal places. Do NOT enter units. Use and carry ALL your digits of your calculator. Metal #Metal o (eV) 1 Ag 4.73 Al 4.08 Cu 4.70 4 Fe 4.50 Na 2.46 6. Pb 4.14 Pt 6.35 Zn 4.31 our Answer: