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全內反射練習

Physics

9th Grade

Used 19+ times

全內反射練習
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7 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列關於全內反射的公式是正確的?

n = sin c

n = 1 / sin c

c = sin n

n = sin ( 1/ c)

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列何者是涉及全內反射現象及應用例子

(1) 利用光導纖維傳送光線或訊號

(2) 海市蜃樓

(3) 在平靜湖面發生單向反射

只有 (3)

只有(1)及(2)

只有(2)及(3)

(1), (2) 及(3)

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

下圖是關於 那個物理現象

單向反射

利用光導纖維傳送光線或訊號

海市蜃樓

虛像

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列哪個關於全內反射的光線圖是正確的?

Media Image
Media Image
Media Image
Media Image

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

一道光線由介質X進入空氣,而介質X的臨界角是400。在下列各圖像中,哪個是正確的 ?

Media Image
Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

已知水的折射率是 1.33。下列那個求水的臨界角 C的計算是正確的。

sin 1.33 = 1 / c

sin c = 1.33

c = 1 / sin 1.33

sin c = 1 / 1.33

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

光線由Y進入空氣。下列哪個句子是正確的?

(1) 光線在 Y中發生全內反射

(2) 物質Y 的臨界角是450

(3) Y 較X光密

只有 (3)

只有 (1) 及 (2)

只有 (2) 及 (3)

(1), (2) 及 (3)

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