Answered: In a photoelectric experiment, the…

In a photoelectric experiment, the wavelength of the light incident on metal is changed from 300 nm to 400 nm and (hc/e = 1240 nm-V). Find the decrease in the stopping potential.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Quantum Physics

Section: Chapter Questions

Problem 7CQ

See similar textbooks

Related questions

Q: Required information A sine wave is traveling to the right on a cord. The lighter line in the figure…

A: Amplitude can be measured by the maximum height on the y axis from the origin.

Q: The gauge pressure at the bottom of an open tank filled with crude oil (density = 0.796 g/ml) filled…

Q: Water at 34.0°C is sprayed onto 0.124 kg of molten gold at 1063 °C (its melting point). The water…

Q: A flashlight produces an average intensity of 465 W/m^2 shining on a wall. What is the maximum…

Q: The torque is maximum when the angle between the Force and the lever arm is: a) 45 deg b) 180 deg…

A: The torque exerted by a force on a lever arm is given by the formula:Torque=Force ×L ever Arm ×…

Q: Two buses start at the same time towards each other from terminals A and B, 8 km apart. The time…

A: Distance between terminal A and B (d) = 8 kmTime taken by first bus (t1) = 8 minTime taken by second…

Q: The diagram below shows a long wire with a right angle bend. A current of I-3.14 A flows through the…

A: A long wire with a right angle bend has current I=3.14 A Point 'P' distance a=1.92 cm = 1.92×10-2 m

Q: The midpoint of a guitar string demonstrates simple harmonic motion with motion following the form…

Q: How fast must an electron be moving if all its kinetic energy is lost to a single x-ray photon with…

Q: m m 2 m Traveling with an initial speed of 128 kr, a Cessna 172 accelerates at 6000k kr during level…

Q: A toy car of mass 0.05 kg is propelled by a compressed spring as shown in the following figure.…

A: Mass of the toy car, Force constant of the spring, Distance compressed by the spring, Height of the…

Q: 9. Two blocks (A and B) are at rest on a horizontal floor. Block A has a weight of 100 N, and block…

Q: A novice golfer on the green takes three strokes to sink the ball. The successive displacements of…

Q: Required information A sound wave has an intensity level of 125.4 dB in air. The density of air at…

Q: A 95-turf square wire coll of area 0.040 m² rotates about a vertical axis at 1,330 rev/min, as…

A: Number of turns (N) = 95Area of the coil (A) = 0.040m2Angular speed of the coil (ω) = 1330 rev/ min…

Q: A 2.00-kg block is pushed against a spring with negligible mass and spring constant k = 400 N/m,…

Q: A conducting loop moves in a magnetic field of magnitude 0.450 T directed out of the plane of the…

A: Magnitude of magnetic field, B = 0.450 T (Out of the plane)Speed, v = 5 m/s (downwards) Emf induced…

Q: H Coherent light with an unknown wavelength passes through two very narrow slits with a separation d…

A: separation between the slits is d = 0.011mm => d = 0.011*10-3 mThe angle at which third order…

Q: Who is Isaac Newton and why is he so famous?

A: Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was a renowned engligh mathematician,…

Q: F2-1. Determine the magnitude of the resultant force acting on the screw eye and its direction…

Q: What is the speed of propagation of the pulse? m/s

Q: A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal…

Q: Let's compare the acceleration due to gravity at the surface of a Sun-like star to a white dwarf of…

Q: Questions 21-25 A box drops down from a lorry while moving with a speed of 10 m/s on the road with…

A: Solution:Given:m = mass of the block = 10 kgv = speed of the block = 10 m/sg = gravitational…

Q: In a Young's double-slit experiment the wavelength of light used is 478 nm (in vacuum), and the…

A: Wavelength of light is Separation slits is Note:Find:(a) Angle corresponding to the dark fringe for…

Q: 1. A 100.0 gram mass is driven by a spring and oscillates with a period of 2.5 seconds. What is the…

A: time period So. simple harmonic oscillator follows the following 2nd order…

Q: ASK YOUR TEACHER With the installation of noise suppression materials, the noise level in an…

Q: The refractive indices of materials A and B have a ratio of na/ng = 1.39. The speed of light in…

A: Given the ratio of the refractive indices of materials A and B,The speed of light in material A is

Q: Express the units of O 000 ms-1 ms2 m₂-3 ma¹ kg gD whereg is gravitational acceleration (ms), fis…

A: Unit of g = m/s²Unit of D = mUnit of ρ = kg/m³Unit of ∆ρ = kg/m³Unit of f = 1/sUnit of ∆y = m

Q: An object 1.70 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured…

Q: One end of a uniform 3.70-m-long rod of weight F is supported by a cable at an angle of 8 = 37° with…

Q: Two hangers are attached by a string to a vertically mounted pulley system as shown. One disk is…

A: Mass of the larger disk, Radius of larger disk of mass M, Mass of the small disk, Radius of the…

Q: Nellie Newton hangs at rest from the ends of a rope. (the rope is over a tree limb and each hand…

A: Solution:Given:Girl is suspended by a rope as described in the statement of question. W = weight of…

Q: Express your answer to two significant figures and include the appropriate units. L = 21607.1 for…

Q: Two sinusoidal waves of the same frequency travel in the same direction along a string. If Ym1 = 4.4…

Q: A child has a mass of 18kg and slides down a height of 2.7m without friction. the gravitiational…

A: Mass, m = 18 kgheight of 2.7m

Q: Required information Two speakers vibrate in phase with each other at 523 Hz. At certain points in…

Q: A small insect is placed 7.65 cm from a 8.00 cm -focal-length lens. Part A Calculate the position of…

Q: Two people, Charlotte and James, are sitting on a frozen lake and push off of each other. If James…

A: This question can be solved using law of conservation of momentum. The law of conservation of…

Q: A particle confined to the xy-plane is in uniform circular motion around the origin. The x- and…

A: X(t)=r sin (wt)y(t)=r cos (wt)given r=2.60 mw=2.15 s-1we know vx== rw cos(wt)and vy= = -rw…

Q: Radium is a radioactive element whose nucleus emits an alpha particle (a helium nucleus) that has a…

A: Energy, E = 6.5×10-13 JMass, m = ?

Q: An astronaut, with her space-suit, has a mass 80 kg. The gravitational field strength on the Moon is…

A: Concept:We know the weight of the person on the surface of the planet where the gravitational field…

Q: A particle known as a pion lives for a short time before breaking apart into other particles.…

A: Given Data:Speed of the particle Lifetime of pion To Determine:(a). The lifetime of the pion…

Q: A block with a mass (m) of .31kg is set against a spring with a spring constant of k1 = 604 n/m…

A: Mass of the block, Spring constant of the first spring, Spring constant of the first spring, The…

Q: 2. If 34 N of force, applied to a piston with an area of 0.3 m², is sufficient to lift 678 N,…

A: Given data: Force on input piston (F1) = 34 NArea of input piston (A1) = 0.3 m2 Force on output…

Q: A block with a mass of 4.5 kg is attached to a spring with a spring constant of 970 N/m. it is…

Q: Concept Simulation 26.3 reviews the concepts that play a role in this problem. A converging lens has…

Q: A curling player pushes a 17.2 kg stone with an initial velocity of 3.68m/s^2. How far will it…

Q: What is the intensity (in W/m2) of an electromagnetic wave with a peak electric field strength of…

A: The intensity of an electromagnetic wave can be calculated by;Where:permittivity of free space(ε0)…

Q: A toy car is placed 25.0 cm from a convex mirror. The image of the car is upright and one-third as…

A: The object (toy car) distance, Magnification, (The image of the car is upright means…

Concept explainers

Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.

Question

2- In a photoelectric experiment, the wavelength of the light incident on metal is
changed from 300 nm to 400 nm and (hc/e = 1240 nm-V). Find the decrease in the
stopping potential.

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: Given data

VIEW

Step 2: Find expressions for initial and final stopping potential

VIEW

Step 3: Calculate decrease in the stopping potential

VIEW

Solution

VIEW

Step by step

Solved in 4 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

Estimate the binding energy of electrons in magnesium, given that the wavelength of 337 nm is the longest wavelength that a photon may have to eject a photoelectron from magnesium photoelectrode.
A 600-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of 0.17 eV are emitted. Determine (a) the work function and (b) the cutoff frequency of the surface. (c) What is the stopping potential when the surface is illuminated with light of wavelength 400 nm?
(a) If the power output of a 650-kHz radio station is 50.0 kW, how many photons per second are produced? (b) If the radio waves are broadcast uniformly in all directions, find the number of photons per second per square meter at a distance of 100 km. Assume no reflection from the ground or absorption by the air.
Show that Stefan’s law results from Planck’s radiation law. Hin: To compute the total power of blackbody radiation emitted across the entire spectrum of wavelengths at a given temperature, integrate Planck’s law over the entire spectrum P(T)=0I(,T)d. Use the substitution x=hckT and the tabulated value of the integral 0dx x 3( e x 1)=415
What is the kinetic energy of an electron in a TEM having a 0.0100-nm wavelength?
Which type of radiation is most suitable for the observation of diffraction patterns on crystalline solids; radio waves, visible light, or X-rays? Explain.
How many x-ray photons per second are created by an x ray tube that produces a flux of x rays having a power of 1.00 W? Assume the average energy per photon is 75.0 keV.
Estimate the work function of aluminum, given that the wavelength of 304 nm is the longest wavelength that a photon may have to eject a photoelectron from aluminum photoelectrode.
(a) Calculate the velocity of an electron that has a wavelength of 1.00 m. (b) Through what voltage must the electron be accelerated to have this velocity?
(a) Calculate the number of photoelectrons per second ejected from a 1.00-mm2 area of sodium metal by 500-nm M radiation having an intensity of 1.30 kW/m2 (the intensity of sunlight above the Earth's atmosphere). (b) Given that the binding energy is 2.28 eV, what power is carried away by the electrons? (c) The electrons carry away less power than brought in by the photons. Where does the other power go? How can it be recovered?
The velocity of a proton emerging from a Van de Graaff accelerator is 25.0% of the speed of light. (a) What is the proton's wavelength? (b) What is its kinetic energy, assuming it is nonrelativistic? (c) What was the equivalent voltage through which it was accelerated?
Which aspects of the photoelectric effect cannot be explained without photons? Which can be explained without photons? Are the latter inconsistent with the existence of photons?