下列有關光電效應現象的敘述,何者正確?

20210622test

Quiz
•
Physics
•
10th Grade
•
Medium
栢川 林
Used 1+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
光電子的動能與入射光的強度成正比
無論入射光頻率多少,光強度愈強,愈容易產生光電子
入射光之頻率高於底限頻率時,縱然光強度微小,亦可能產生光電子而引起光電流
光子能量被電子吸收後,完全變成電子的動能
入射光波長愈長,光電子的最大動能愈大
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
某金屬的功函數為 6.4 × 10 − 19焦耳,若要使該金屬放出光電子,則入射光波長的上限為幾埃?(設h ≈ 6.63 × 10 − 34焦耳.秒,c = 3 × 108公尺/秒)
3100
4300
5500
6700
7900
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
甲、乙兩種可見光,其波長為600奈米與400奈米,則甲、乙的光子能量比為何?
3:2
2:3
9:4
4:9
1:1
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
下列哪一個實驗可以最精確的判斷某一混合氣體中是否有氦氣存在?
觀察氣體的光譜
觀察氣體壓力隨溫度的變化
用肉眼辨識氣體的顏色
測量常溫常壓下氣體的密度
測量常溫常壓下氣體的折射率
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
下列有關量子論的發展,何者正確?
19世紀末期,人類仍然可以利用能量連續的理論來解釋原子內部微觀的事實
牛頓是第一位提出量子概念的科學家
直至目前為止,人類仍無法證實自然界裡有量子現象的存在
光電效應是反駁光具有量子特性的最佳實驗
普朗克勇於提出與舊有理論相反的解釋,以量子概念解釋熱輻射的實驗結果
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在普朗克量子理論中,質點振盪吸收或釋放的能量不可能為下列何者?
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
下列有關電子能階的敘述,何者錯誤?
電子由高能階降至低能階時,放出的光譜具有連續的頻率
氫原子的電子距離原子核愈遠,其能階愈高
原子受適當的熱或照光,可使電子躍遷到較高能階
霓虹燈的發光係來自原子核外電子的躍遷
煙火的火焰顏色是來自原子核外電子的躍遷
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