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A beam of light has a wavelength of 650 nm in vacuum. What is the wavelength of these waves in the liquid?
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Ch 33: The Nature and Propagation of Light
Young & Freedman Calc14th EditionUniversity PhysicsISBN: 9780321973610
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TOC.tableOfContents
- Ch 01: Units, Physical Quantities & Vectors41
- Ch 02: Motion Along a Straight Line67
- Ch 03: Motion in Two or Three Dimensions47
- Ch 04: Newton's Laws of Motion23
- Ch 05: Applying Newton's Laws59
- Ch 06: Work & Kinetic Energy14
- Ch 07: Potential Energy & Conservation8
- Ch 08: Momentum, Impulse, and Collisions18
- Ch 09: Rotation of Rigid Bodies42
- Ch 10: Dynamics of Rotational Motion48
- Ch 11: Equilibrium & Elasticity27
- Ch 12: Fluid Mechanics31
- Ch 13: Gravitation35
- Ch 14: Periodic Motion32
- Ch 15: Mechanical Waves25
- Ch 16: Sound & Hearing32
- Ch 17: Temperature and Heat36
- Ch 18: Thermal Properties of Matter38
- Ch 19: The First Law of Thermodynamics33
- Ch 20: The Second Law of Thermodynamics22
- Ch 21: Electric Charge and Electric Field36
- Ch 22: Gauss' Law24
- Ch 23: Electric Potential31
- Ch 24: Capacitance and Dielectrics18
- Ch 25: Current, Resistance, and EMF26
- Ch 26: Direct-Current Circuits30
- Ch 27: Magnetic Field and Magnetic Forces18
- Ch 28: Sources of Magnetic Field10
- Ch 29: Electromagnetic Induction28
- Ch 30: Inductance17
- Ch 31: Alternating Current21
- Ch 32: Electromagnetic Waves1
- Ch 33: The Nature and Propagation of Light20
- Ch 34: Geometric Optics34
- Ch 35: Interference19
- Ch 36: Diffraction25
- Ch 37: Special Relativity20
- Ch 38: Photons: Light Waves Behaving as Particles15
- Ch 39: Particles Behaving as Waves26
- Ch 40: Quantum Mechanics I: Wave Functions21
- Ch 41: Quantum Mechanics II: Atomic Structure25
- Ch 42: Molecules and Condensed Matter18
- Ch 43: Nuclear Physics16
- Ch 44: Particle Physics and Cosmology23
Young & Freedman Calc14th EditionUniversity PhysicsISBN: 9780321973610Non è quello che usi tu?Cambia libro di testo
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Young & Freedman Calc 14th EditionCh 33: The Nature and Propagation of LightProblema 1
Young & Freedman Calc 14th EditionCh 33: The Nature and Propagation of LightProblema 1Capitolo 33, Problema 1
Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point 11.5 cm from their point of intersection, as shown in Fig. E33.1. For what angle of incidence at the first mirror will this ray strike the midpoint of the second mirror (which is 28.0 cm long) after reflecting from the first mirror?
Guida verificata passo dopo passo1
Understand the setup: Two plane mirrors intersect at right angles, forming a corner. A laser beam strikes the first mirror at a point 11.5 cm from the intersection.
Identify the goal: We need to find the angle of incidence at the first mirror such that the reflected ray strikes the midpoint of the second mirror, which is 28.0 cm long.
Calculate the position of the midpoint of the second mirror: Since the second mirror is 28.0 cm long, its midpoint is at 14.0 cm from the intersection.
Use the law of reflection: The angle of incidence is equal to the angle of reflection. Set up the geometry of the situation to find the path of the ray from the first mirror to the midpoint of the second mirror.
Apply trigonometry: Use the distances (11.5 cm from the intersection to the point of incidence on the first mirror and 14.0 cm to the midpoint of the second mirror) to form a right triangle. Use trigonometric relationships to solve for the angle of incidence.
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Reflection of Light
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. The law of reflection states that the angle of incidence is equal to the angle of reflection, which is crucial for determining the path of the laser beam as it strikes and reflects off the mirrors.
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Percorso guidato
06:25
Law of Reflection
Geometry of Plane Mirrors
Plane mirrors are flat reflective surfaces that alter the path of light according to the law of reflection. When two plane mirrors intersect at right angles, they create a predictable path for light rays, allowing for calculations of angles and distances. Understanding the geometry of these mirrors helps in determining the trajectory of the laser beam as it reflects between them.
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Percorso guidato
06:06Ray Diagrams for Plane Mirrors
Angle of Incidence
The angle of incidence is the angle between the incoming ray and the normal (perpendicular) to the surface at the point of contact. It is a critical factor in determining how the laser beam will reflect off the first mirror and subsequently strike the second mirror. Calculating the correct angle of incidence ensures the beam reaches the desired point on the second mirror.
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Percorso guidato
01:04Critical Angle
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