Physics
Physics
1st Edition
Walker
ISBN: 9780133256925
Table of contents
Textbook solutions

All Solutions

Page 881: Standardized Test Prep

Exercise 1
Step 1
1 of 2
The second statement $textit{“Measurements of momentum become more uncertain as measurements of time are more exact.”}$ is false.
Result
2 of 2
(B)
Exercise 2
Step 1
1 of 2
The energy of the photon is given by

$E = hf$

where $f$ is the frequency and $h$ is the Planck’s constant.

The value of Planck’s constant is $h = 6.626 times 10^{-34}:J.s$.

The frequency is given as $f=1 times 10^{15}:Hz$. So the energy of the photon is given by

$E = hf = 6.626 times 10^{-34} times 1 times 10^{15} = 6.626 times 10^{-19}:J$

Result
2 of 2
(C) $6.6 times 10^{-19}:J$
Exercise 3
Step 1
1 of 2
The de Broglie wavelength of the proton is given as $lambda = 200:nm = 200 times 10^{-9}:m$.

Its momentum is given by

$p = dfrac{h}{lambda}$

where $h$ is Planck’s constant and its value is given by $6.626 times 10^{-34}:J.s$

$p = dfrac{6.626 times 10^{-34}}{200 times 10^{-9}} = dfrac{6.626 times 10^{-34}}{2 times 10^{-7}}$

$p = dfrac{6.626}{2} times 10^{-34} times 10^7 = 3.313 times 10^{-27}: J.s .m^{-1} = 3.313 times 10^{-27}:Kg.m.s^{-1}$

$[ J = Kg. m^2. s^{-2} ]$

Result
2 of 2
(D) $3.3 times 10^{-27}:Kg.m/s$
Exercise 4
Step 1
1 of 2
Planck’s constant was introduced to explain the $textit{blackbody radiation curves}$.
Result
2 of 2
(A) blackbody radiation curves.
Exercise 5
Step 1
1 of 2
According to the concept of wave-particle duality, the de Broglie wavelength $textit{is inversely proportional to momentum}$.
Result
2 of 2
(D) is inversely proportional to momentum.
Exercise 6
Step 1
1 of 2
The work function ($W_0$) of the metal is given by

$W_0 = h f_0$

where $f_0$ is the cutoff frequency and $h (=6.626 times 10^{-34}:J.s)$ is Planck’s constant.

The value of the cutoff frequency of the metal is given as $f_0 = 1.5 times 10^{15}:Hz$.

$W_0 = 6.626 times 10^{-34} times 1.5 times 10^{15} = 6.626 times 1.5 times 10^{-34} times 10^{15} = 9.939 times 10^{-19}:J$

Result
2 of 2
(A) $9.9 times 10^{-19}:J$
Exercise 7
Step 1
1 of 2
From the graph, up to the frequency of $1.0 times 10^{15}:Hz$, the kinetic energy is zero. So the cutoff frequency is $1.0 times 10^{15}:Hz$
Result
2 of 2
(B) $1.0 times 10^{15}:Hz$
Exercise 8
Step 1
1 of 2
The maximum kinetic energy of the electron, emitted in photoelectric experiment is given by

$K_{max} = hf – W_0$

where $h$ is the Planck’s constant, $f$ is the frequency and $W_0$ is the work function.

When $K_{max}$ is plotted as a function of $f$, the curve is the straight line with $h$ being the slope and $-W_0$ being the $y$-intercept value.

So the slope of the graph is Planck’s constant ($h$).

Result
2 of 2
(C) Planck’s constant.
Exercise 9
Step 1
1 of 2
The maximum kinetic energy of the electron, emitted in photoelectric experiment is given by

$K_{max} = hf – W_0$

where $h$ is the Planck’s constant, $f$ is the frequency and $W_0$ is the work function.

This is a straight line equation with $h$ being the slope and $-W_0$ being the $y$-intercept value.

At cutoff frequency, $f_0 = 1.0 times 10^{15}:Hz$, the kinetic energy of the electron is zero.

So the work function can be written as

$W_0 = hf_0 = 6.626 times 10^{-34}:J. cancel{s} times 1.0 times 10^{15} :dfrac{1}{cancel{s}} = 6.626 times 10^{-19} :J$

Result
2 of 2
See Solution.
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Chapter 1: Introduction to Physics
Section 1.1: Physics and the Scientific Method
Section 1.2: Physics and Society
Section 1.3: Units and Dimensions
Section 1.4: Basic Math for Physics
Page 38: Assessment
Page 41: Standardized Test Prep
Chapter 2: Introduction to Motion
Section 2.1: Describing Motion
Section 2.2: Speed and Velocity
Section 2.3: Position-Time Graphs
Section 2.4: Equation of Motion
Page 66: Assessment
Page 71: Standardized Test Prep
Page 45: Practice Problems
Page 47: Practice Problems
Page 47: Lesson Check
Page 49: Practice Problems
Page 52: Practice Problems
Page 53: Lesson Check
Page 56: Practice Problems
Page 57: Lesson Check
Page 59: Practice Problems
Page 60: Practice Problems
Page 62: Practice Problems
Page 62: Lesson Check
Chapter 3: Acceleration and Acceleration Motion
Section 3.1: Acceleration
Section 3.2: Motion with Constant Acceleration
Section 3.3: Position-Time Graphs for Constant Acceleration
Section 3.4: Free Fall
Page 105: Assessment
Page 111: Standardized Test Prep
Chapter 4: Motion in Two Dimensions
Section 4.1: Vectors in Physics
Section 4.2: Adding and Subtracting Vectors
Section 4.3: Relative Motion
Section 4.4: Projectile Motion
Page 144: Assessment
Page 149: Standardized Test Prep
Chapter 5: Newton’s Laws of Motion
Section 5.1: Newton’s Laws of Motion
Section 5.2: Applying Newton’s Laws
Section 5.3: Friction
Page 180: Assessment
Page 187: Standardized Test Prep
Chapter 6: Work and Energy
Section 6.1: Work
Section 6.2: Work and Energy
Section 6.3: Conservation of Energy
Section 6.4: Power
Page 220: Assessment
Page 227: Standardized Test Prep
Page 191: Practice Problems
Page 193: Practice Problems
Page 196: Lesson Check
Page 196: Practice Problems
Page 199: Practice Problems
Page 201: Practice Problems
Page 203: Practice Problems
Page 204: Practice Problems
Page 205: Practice Problems
Page 206: Lesson Check
Page 209: Practice Problems
Page 211: Lesson Check
Page 213: Practice Problems
Page 214: Practice Problems
Page 215: Practice Problems
Page 216: Lesson Check
Chapter 7: Linear Momentum and Collisions
Section 7.1: Momentum
Section 7.2: Impulse
Section 7.3: Conservation of Momentum
Section 7.4: Collisions
Page 260: Assessment
Page 265: Standardized Test Prep
Chapter 8: Rotational Motion and Equilibrium
Section 8.1: Describing Angular Motion
Section 8.2: Rolling Motion and the Moment of Inertia
Section 8.3: Torque
Section 8.4: Static Equilibrium
Page 300: Assessment
Page 305: Standardized Test Prep
Page 269: Practice Problems
Page 271: Practice Problems
Page 272: Practice Problems
Page 275: Practice Problems
Page 275: Lesson Check
Page 277: Practice Problems
Page 280: Lesson Check
Page 284: Practice Problems
Page 286: Practice Problems
Page 287: Practice Problems
Page 289: Lesson Check
Page 294: Practice Problems
Page 295: Practice Problems
Page 296: Lesson Check
Chapter 9: Gravity and Circular Motion
Section 9.1: Newton’s Law of Universal Gravity
Section 9.2: Applications of Gravity
Section 9.3: Circular Motion
Section 9.4: Planetary Motion and Orbits
Page 336: Assessment
Page 341: Standardized Test Prep
Chapter 10: Temperature and Heat
Section 10.1: Temperature, Energy, and Heat
Section 10.2: Thermal Expansion and Energy Transfer
Section 10.3: Heat Capacity
Section 10.4: Phase Changes and Latent Heat
Page 378: Assessment
Page 383: Standardized Test Prep
Chapter 11: Thermodynamics
Section 11.1: The First Law of Thermodynamics
Section 11.2: Thermal Processes
Section 11.3: The Second and Third Laws of Thermodynamics
Page 410: Assessment
Page 413: Standardized Test Prep
Chapter 12: Gases, Liquids, and Solids
Section 12.1: Gases
Section 12.2: Fluids at Rest
Section 12.3: Fluids in Motion
Section 12.4: Solids
Page 446: Assessment
Page 451: Standardized Test Prep
Chapter 13: Oscillations and Waves
Section 13.1: Oscillations and Periodic Motion
Section 13.2: The Pendulum
Section 13.3: Waves and Wave Properties
Section 13.4: Interacting Waves
Page 486: Assessment
Page 491: Standardized Test Prep
Chapter 14: Sound
Section 14.1: Sound Waves and Beats
Section 14.2: Standing Sound Waves
Section 14.3: The Doppler Effect
Section 14.4: Human Perception of Sound
Page 523: Assessment
Page 527: Standardized Test Prep
Page 495: Practice Problems
Page 496: Practice Problems
Page 500: Practice Problems
Page 501: Lesson Check
Page 503: Practice Problems
Page 504: Practice Problems
Page 506: Practice Problems
Page 506: Lesson Check
Page 510: Practice Problems
Page 511: Practice Problems
Page 512: Lesson Check
Page 514: Practice Problems
Page 516: Practice Problems
Page 517: Practice Problems
Page 519: Lesson Check
Chapter 15: The Properties of Lights
Section 15.1: The Nature of Light
Section 15.2: Color and the Electromagnetic Spectrum
Section 15.3: Polarization and Scattering of Light
Page 557: Assessment
Page 563: Standardized Test Prep
Chapter 16: Reflection and Mirrors
Section 16.1: The Reflection of Light
Section 16.2: Plane Mirrors
Section 16.3: Curved Mirrors
Page 590: Assessment
Page 595: Standardized Test Prep
Chapter 17: Refraction and Lenses
Section 17.1: Refraction
Section 17.2: Applications of Refraction
Section 17.3: Lenses
Section 17.4: Applications of Lenses
Page 629: Assessment
Page 635: Standardized Test Prep
Chapter 18: Interference and Diffraction
Section 18.1: Interference
Section 18.2: Interference in Thin Films
Section 18.3: Diffraction
Section 18.4: Diffraction Gratings
Page 668: Assessment
Page 673: Standardized Test Prep
Chapter 19: Electric Charges and Forces
Section 19.1: Electric Charge
Section 19.2: Electric Force
Section 19.3: Combining Electric Forces
Page 698: Assessment
Page 703: Standardized Test Prep
Chapter 20: Electric Fields and Electric Energy
Section 20.1: The Electric Field
Section 20.2: Electric Potential Energy and Electric Potential
Section 20.3: Capacitance and Energy Storage
Page 738: Assessment
Page 743: Standardized Test Prep
Chapter 21: Electric Current and Electric Circuits
Section 21.1: Electric Current, Resistance, and Semiconductors
Section 21.2: Electric Circuits
Section 21.3: Power and Energy in Electric Circuits
Page 775: Assessment
Page 781: Standardized Test Prep
Chapter 22: Magnetism and Magnetic Fields
Section 22.1: Magnets and Magnetic Fields
Section 22.2: Magnetism and Electric Currents
Section 22.3: The Magnetic Force
Page 810: Assessment
Page 815: Standardized Test Prep
Chapter 23: Electromagnetic Induction
Section 23.1: Electricity from Magnetism
Section 23.2: Electric Generators and Motors
Section 23.3: AC Circuits and Transformers
Page 844: Assessment
Page 849: Standardized Test Prep
Chapter 24: Quantum Physics
Section 24.1: Quantized Energy and Photons
Section 24.2: Wave-Particle Duality
Section 24.3: The Heisenberg Uncertainty Principle
Page 876: Assessment
Page 881: Standardized Test Prep
Chapter 26: Nuclear Physics
Section 26.1: The Nucleus
Section 26.2: Radioactivity
Section 26.3: Applications of Nuclear Physics
Section 26.4: Fundamental Forces and Elementary Particles
Page 944: Assessment
Page 947: Standardized Test Prep