教備敬
四第張六第
每日五十月二年巳乙
一九六五選試題-預習專欄
物理科
(十五) ·陸永熾 *
IPHYSICS CS
by Mr. Lak Wing Chea
Solution
(a)
Eclipse of the cun:
Images formed by 2afane mirrors) meating at right angles.
the image of 0. with respect To Mirror A
WAH KIU YAT PO
*(b) To find the radius of curvature of a concave almor
(1) Anoroximate Method.
B
A concave mirror, mounted in a holder, is placed at v end of a long room and faces the window. An inverted clear image of the latter is then obtained on a scresh in front of the mirror, and the distance d from the screen to the mirror is measured. Since the window is a long way from the mirror the rays reaching the latter from any point on the in the font parts of 1s rauhly qual
curvature is, therefore, tuice the found Yu The (1) More pdcur
The concave mirror is supported verticous
Hire when the eve is moved from side to side. The distance between the cin and the mirror is the radius of curvature
[more object pine
Um 269 171 "20" 167 50.5 73.3.
and happen to coincide with each dher Scale
ABED is the profile of the room.
is the mirror.
EF. the image of AB, 15 20 ft. beyond DC
The graph cuts the 8-axis of 0.1
The reciprocal of which is the focal Tength of the mirror]
(Ans. The focal length is 0 cm.
fst method (by construction)
Locale A, B, C, D, E, F, H.M. in scale
Drow the extreme rays Elf, and FM2 and product)
to meet at X (The eye of the man). using scale X is 134 ft. from DC and
2nd method (By calóutathion')
Sinee & XHiHN AREF MIME
ONG
日七千月三年五六九一型公年四十五國民中
心
LIMEST
答「秋水時至再度辨疑」
踅燕石而蔑浯虢, 「呜餘以宮| 接第六張第一頁
(借用晔師薜),其動輒得幹必芡。余人
| 銘曰:「多,多會多敗。」玩
閉戶灣假,默爾而息,絕不復爲一疑再經
學號古今,蠊究慨織,触致湋, 之文,則得鬱矣。孫崧日「君
君
OK:
柏師筆試放榜
C五九 謝月窜
謝 C三五六
謝霄 C三 -謝 Cㄧ五五
謝麗養,C三五三。
望如此情形,是因雨,巧將某兩底比 時至」六字了之乎?陳師當時易黄河
乃文案:「何得秋水時至3句不接, | 矣,其餘月份,今之五六月多雨乎?今之法不合,本案皆非,何『反證」之凇乎? 之間不難牛馬。」而鹠障師以「何得秋水一條也。伏邪是在今之六七月,今艺六占用, ]一是今之五六七月,今之七月雨需博秋不論陳超前交中。),在夏曆則是季夏,於歷「何一清縱」而後始稱「得獎】也。」 【模,裔之秋悬州之七八九月,周之秋-呂氏耧秋季豆花-蒽記片令等否。皆靜君云:「余誠不知究應維 「永固之仲秋茶秋,皆周之秋時。而六月「 永獠昌」,「大雨時行」,「見周發時,
·河每年河水國溵凡三次。」 水降到,百川點河,巠流之大,潮淡清業 汛鑼展,做師談前攻強忨君一被攆源浟杯,猶不好自滎陽,而一再浸人乎?又阮君
四 ,自從拾得楊花岸」,「雙燕錄時究攏 艾云此是「結論」,何也?莊周日:「國合氣候無大義,而黃河之盤漲,亦以伏到國放」四字。》。無陳師前文愁醒後,
C三四四 一不钱灭限誦然之先容乎?;實習經詩云: 解艮第七條。阮君野溪劉陳師口語杂,而 刺動之丽,不可以棗莊子代亦如此也,此港中發挝次者所知也入虢玩君維會「
C m 發戰熱時即「彼之怒」乎?祸 開君所知,其堅樂資籍,熊群爲息示否 ? 會,從誦體書動員「為」,「變,長 誹海太火恭敬之「列立飽學之編者」,越 」。阮蓉究閉戶怡,悅嗚无疑,占三五七 乃文案:餘裕三汛之條,是近代黃河,通工具書,絕不能信難章國學者所 藝, 在研究」,「是若非之一耶?陳師又安知三四二) 「反愛」,引錄辭海之三系一樣,證明照|法律,不是不敬。以無意識之雪讚其所說
CHO 「李塞」故!阮君之宫如触,則聆際師之D 者,然後是「大大不敬」。涼後,無所不同,聽自橫橋:「卽 八十⊇玩君云:「余於前交既已出 教聘豬先生哦柊貓節」,把暴際然不知有 生何幸而得壯良師之「啟導」而「開其C 乃文案:云「有一出版模糊」可以「耶?其「內容不起架,來解易」髙?校C三七· 阮君於若干年前亦牌講授莊子秋水籍 CH C四九
鄉嘉所裏知,淪扽師之牆研命學者乎 阮君云:「陳先生袋講學之際 【耳」也,不知腚鈔之十四節氣,老國 吗?此亦有論學常識者之實耶?. ,聊以自廠,冀能「鷸移爾後」「佛 秋水至六字賓之間黼謂之「結論」 ,復舉百餘例俠之略見,太已走人,故雅水時至」之秋,乃A獨之秋,非爾之秋。 「書法,經陳師更其「」之三表後,其枯木雨量最多。然後下盼語,謂「秋 月:夜云:「改正朔奢雕有之矣,改春夏者和改月改時。謂周之在正月即爲之多十 (八)阮君安:「話雖如此,余仍然一八九月多雨乎,並舉孟于「七八月之間雨 焦-薜佾皆盈」,亦是奉周之王朔+朗克琴 木欲談,又不得不恨 蘇聯 再使兩支 持摘昴爾此「秋,易酒之秋:安容柆何有之列位飽學之經者而言,文似大大不敵「下之「。」易原文, 默多名則未之前面。」其勒斯大事越權之 一月,故國之秋七八月卽夏曆之堂五六月已成過去乎?作此雞無意識之言,欲以隨君原文,分別難戒之如次:.. 「質詢」所致者耶? 可笑,而乃自相對照,「快然自足,習得「禮拜及尙慰大傳,先王朗三種曆法之不同,等「常識」乎?「敎國文」固不知國交而「居樂店。」阮君所欲待做得體矣,又剛肆111元 於己」,勰麗曆之秋县今之九、十、十一,阕引容秋經文及春秋左氏何以證明改正,其他可以完盈不聞不間已乎?雖身非—狂言以透師耶?無理取闇,波数再變,而C. 乃文案:阮君會辦兪際矣了除中粱書 中國之人,艾豈能「一無所知」乎?時代開「與陳師所需者至鱨巧合耶? (十二)阮君云:「......對減授秋水於某校也。」〔『』 CH四
「聘人送海外,「今日有一出版缨釋」「至鴐巧合,」、..... ,可以「敦聰連斬爾族翾态]乎?此是何乃文案:易曰:「威骼立其,所以跟月睪時十五分。 版機滿,敦聘擁岩生前修該海......此一致,以爲東家丘者也。」阮君如姐速切斯 CMMI 局及阮君所敬佩列位飽學編舞者莖背蕸 繚♂笑话。此一笑新興陳先生所言者,案 Cit五 八十五、阮君云:「猶若于年前,C三三M
,雖然改轍,則念得體矣。 (十四)君云:「余不妨爲號 C三四 (十一沅君云:「假定今日有一出,者之師棚也,君乃舍之,紫屣千里所謂 〇
代獅·何乃文君:今晚灣來電話。
乃文案:阮君盱盱瞧瞧,實遠鏡近,
三
上川風味
∵四月七日下午三
文: C三六三
黄小杏C四一五.
S九九
余劳
C三六九
C 南冰健
·費于美C三七五
黄新 $
保
彩虹邨三校 天亦芸来護。〔成2] 部份作雜位,除有 各業商店之開設, 兩銀行設立外,並有 ,前往聽帶類衆,今 逾四萬齡,大戚定下學一個,就在 所
伙,現全部人口,備有中季 中學數學問題
|邨租大夏之興建,欲立外,今後有幼·問題。
出版消息
,可望於七八月間全
尚有敎育
一爲官立英文巾Ar
部落成。該藥中學新消息在 一篇就會英文中學,第六張第 一頁
蹲代襠8一卷二期
期兒童故寓,都發,習 下午五。影期的人物故祺「爱就估」,其古代有·移勢。東京源氣「佐藤榮作和張珍珠一第 八輪 尚有售。毎期运齮古今中外的故事,都離 秘之墓」,玉厚生之「論共產國城内部强 今天個讓者開後怒長不少知識,湼助煤業進步」,李瑞之「四川家屬山川及烏蠻分佈
現代雜誌 ..‘昨天出版恃五十七·特性的中共國路」,開之譯「中蘇共教基 激非」,花影辯之「史能揭開了毛澤東 中興民族之前途」,東方赫之「透視樓子
係力作,探問有 ,及連載之譚嗣同評傳,無定河小,均 -,绡谷惡神父之「悼詩人艾里泰特先生」
·散文」,译稿介之「?的弟弟L轢榮作」
于小學
項關 ,本期刊「他頊驕傲受教訓」,諮 样把時開浪費了」。是驚連軾「蜜斯習」 有爰奇故事「老鷹的死」,她發漫書「阿 「民間故事「金豆」,靜蒈人終無幸福。倘 兹大英」,一路工系子的勇敢和智。 名的女則將的忠烈竅。凤實故事「小孩
『講,在 本港數學渡人。全部唇印,定蛋可撥電話一三二九六等地說著之文泰刊物——小摩南月刊十六期 學谢月一份擁有台灣、越 南、印尼、澳門及被港
一號,專入派系
三流 在栏
·李英 李玉英一係來自英國芝加 項公開演講,
兒童樂園·
九三湖兒總關:名,地址,五分一〔欲
出版,刊出棒杀馁√ ;附回郵五分卝枚》,當香港北角英皇
黃銅三 黃客C三八
·忠如C三七 黃志華 C三七六
Oil
(三月),月底出碳。歡迎預索,附姓
·梁 大學緻學教授馬案· 食雠为!日下午五時三十分,,印刷精美。本六角,岩報攤有售。 當上。 魔彩 真主。史東注,張百合一、民由故事「小甲虫的奇遇」。 毛恩光第一宫前十五「金菊公主」。半動人,瀏客活潑,或未收第十三期者,示通訊處,以便 麥月职院感篙第二天,其欄「小圓丸」、「火箭人」、「齎賓遊記 鱠交等十歔篇、交各艾社如有更改通訊端
•阿伏對戰擊研究有素,影 民間故事「魯班報恩」,滑腾故事「大耳 有之專欄:文學漫跳,文字常識,開卷偶 陷濠傑,此次公開說 王偶發景」、大漫發「楨摈節」、毎期惠,拾及消岛通訊部零沉外,另有散文,降,
·道八六九三樓學園發刊組收。县期除原
20y = 3(134)+60
5
His eyes must be 131 ft, from the
mirror and 5 ft. from the floor.
real and virtual image is formed in
frent and behind the mirtor resbeet- ively
Juestions: 16,
a. (a) Define refractive inder and arnisin briefly a method of
measuring its value for vater,
"Assume that the ray AD incidents normally on MyMat
If May is turned through an angle è so mimg, the normal b
15:
By the laws of relfection, 40 is reflected along OB with the
AIR
.
GLASS
GLASS
That is the reflected ray is turned through 201
point of incidence all lie in the same plave,
(2) The angle of incidence is equal to the angle of reflection,
A
(e) Two plane mirrors are parallel and face each other. They are den, apart, and a small luminous object is placed of cm, from one of them. Find the distance from the object of an, image prodused by four reflections.
2. (a) Give the meaning of the terms critical angle," and total] internal reflection, illustrate your answers by diagrams, y (5) Complete the diagram in Fig.1 to show what happens to LANCE: LIBRARYZarrow beam of light incident on a pentagonal prism, (1)
Fight angle, and (ii) at 30 degrees with the normal.7
17 MAR 1965 **
(0) Pig. 2 shows a view, seen from above, of a hollow ginan
cube divided into two compartments by a thick alab of glass. Copy the diagram on a larger scale and show the effects of reflection and refraction on the course of the ray of light marked P Show, on other diagrams, the course of the inci
·dent light wien henzene is poured: into (i) compartment K only, (ii) compartment Y only,
(The glass has the same refractive index as benzene and bas a critical angle of 42 degrees)
(d) A converging lens A of 10 in. focal length is placed ao that a luminous point lies on its aris at a distance of 201 lin. After the light has passed through A it falls on a sec and leas B of 3 3 in. focal length, from which it emerges as a parallel beso. Find where the leas 5 must be placed (1) ► $ 11 10 a converging lens, (ii) if it as a diverging lens,AN
LIVH AIM FARM