Fundamentals of Physics

Lecture 18 - Wave Theory of Light




Overview:
Young's double slit experiment shows clearly that light is a wave. (In order to observe the wave behavior of light, the slit size and separation should be comparable or smaller than the wavelength of light.) Interference is described using real and complex numbers (in anticipation of quantum mechanics). Grating and crystal diffraction are analyzed.

Class lecture:

Resources:

Problem Set 9 [PDF]
Problem Set 9 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.

Fundamentals of Physics

Lecture 17 - Ray or Geometrical Optics II

Overview:

Ray diagrams are used to investigate the behavior of light incident on mirrors and lenses. The principle of least time is used to show that all rays from an object in front of a concave mirror focus on the image point if they are not too far from the axis. The experiments describing the breakdown of geometric optics are discussed.

Class lecture:

Resources:

Notes: Geometrical Optics [PDF]
Problem Set 9 [PDF]
Problem Set 9 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.

Fundamentals of Physics

Lecture 16 - Ray or Geometrical Optics I

Overview:

Geometric optics is discussed as an approximation to wave theory when the wavelength is very small compared to other lengths in the problem (such as the size of openings). Many results of geometric optics involving reflection, refraction (mirrors and lenses) are derived in a unified way using Fermat's Principle of Least Time.

Class lecture:

Resources:

Notes: Geometrical Optics [PDF]
Problem Set 8 [PDF]
Problem Set 8 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.

Fundamentals of Physics

Lecture 15 - Maxwell's Equations and Electromagnetic Waves II

Overview:

The physical meaning of the components of the wave equation and their applications are discussed. The power carried by the wave is derived. The fact that, unlike Newton's laws, Maxwell's equations are already consistent with relativity is discussed. The existence of magnetism is deduced from a thought experiment using relativity.

Class lecture:

Resources:

Problem Set 8 [PDF]
Problem Set 8 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.

Fundamentals of Physics

Lecture 14 - Maxwell's Equations and Electromagnetic Waves I

Overview:

Waves on a string are reviewed and the general solution to the wave equation is described. Maxwell's equations in their final form are written down and then considered in free space, away from charges and currents. It is shown how to verify that a given set of fields obeys Maxwell's equations by considering them on infinitesimal cubes and loops. A simple form of the solutions is assumed and the parameters therein fitted using Maxwell's equations. The wave equation follows, along with the wave speed equal to that of light (3 x 10^8), suggesting (correctly) that light is an electromagnetic wave. The vector relationship between the electric field, the magnetic field and the direction of wave propagation is described.

Class lecture:

Resources:

Problem Set 7 [PDF]
Problem Set 7 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.

Fundamentals of Physics

Lecture 13 - LCR Circuits—AC Voltage

Overview:

The mathematics underlying LCR circuit theory for AC currents is discussed. Complex numbers are used to convert differential equations to algebraic equations. The notion of impedance is introduced. The radio is used to illustrate the concepts of resonance and variable capacitance. The body of classical electromagnetism treated so far is reviewed and summarized. The displacement current is introduced, leading to the complete Maxwell equations.

Class lecture:

Resources:

Problem Set 6 [PDF]
Problem Set 6 Solutions [PDF]

Sumber:

University of Yale Open Course Ware

Prof. Ramamurti Shankar, Ph.D.
(His website)

Ucapan Terima Kasih Kepada:

Dosen-dosen Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

Disusun Ulang Oleh:

Arip Nurahman

Pendidikan Fisika, FPMIPA. Universitas Pendidikan Indonesia

&

Follower Open Course Ware at MIT-Harvard University, Cambridge. USA.