1998CAP Prize Exam加拿大高中物理大獎賽真題答案下載

歷年CAP High School Prize Exam加拿大高中物理大獎賽

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1998 CAP Prize Exam完整版真題免費下載

共計3小時考試時間

此套試卷由25道選擇題以及3道大題組成

每道大題含有不同數量的小題

請點擊訪問下方鏈接進入下載頁面

1998 CAP Prize Exam完整版真題

1998CAP Prize Exam加拿大物理奧林匹克完整版答案免費下載

部分真題答案預覽：

Part A選擇題部分：

1. A
2. D
3. D
4. A
5. A

Part B簡答題部分

Solution to Problem 2：

The reflected light is directed at 30° to the normal Snell's law gives us the refraction angle for the na-n1 interface .

nasin(θ1)=nl sin(θ1)

Hence ,θ1=19.5°.The angle of light incident upon,and reflected from, the substrate layer is also19.5°.

Applying Snell's law agiain gives the refraction angle for the light passing into the substarte.

Hence,θl=24.6°.Light reflecting from the substrate is incident upon the air at an angle of 19.5° and the refraction angle is 30°.

Evaluating the expressions given for the reflection and transmission coefficients gives,

The intensity of the ray which reflects from the first interfaced or transmitted ray may reflect from the second interface and in turn ,be transmitted through the first, The total for these first two possible rays is 0.27I

Now the problem is to sum the intensities of all possible reflected rays.Simplifying our notation to R0=0.04,

R=0.25 and T=0.96 we write,

 

 

 

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