課程名稱︰普通物理甲下 課程性質︰必 課程教師︰趙治宇 開課學院：理 開課系所︰物理 考試日期（年月日）︰100/6/23 考試時限（分鐘）：3 hrs 是否需發放獎勵金：yes （如未明確表示，則不予發放） 試題 : 12題，滿分100。 1. What's the working principle of tape recording and playback in a video tape recorder? (4%,4%) 2. Design an experiment to show the existence of diamagnetic material. (8%) 3. Describe (a) the behavior of electric field of a partially polarized light and (b) the difference bwtween unpolarized light and circularly polarized light. (4%, 6%) 4. In a double-slit experiment, the wavelength s of the light source is 405nm, the slit separation d is 19.44 um, and the slit width is 4.05 um. How many bright fringes are within the central peak of the diffraction envelop? (8%) 5. Derive the speed of light c in vacuum space in (a) amplitude ratio form and (b) in terms of (電磁的那兩個常數 (mu, epison)打不出來). (8%) 6. Figure 1 shows a cross section of a long thin ribbon of width w that is carring a uniformly distributed total current i into the page. In unit vector notion, what is the magnetic feild B at a point P in the plane of the ribbon at a distance d from its edge? (8%) Figure 1. | y axis | | | P------============ ---長度=d , ======長度=w 電流在===上，方向進入螢幕。 to be continued... -- 十年生死兩茫茫，不思量，自難忘，千里孤墳，無處話淒涼。 縱使相逢應不識，塵滿面 ，鬢如霜。 夜來幽夢忽還鄉，小軒窗，正梳妝，相顧無言，唯有淚千行。 料得年年腸斷處 ，明月夜 ，短松岡。 --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.218.123