育教僑華夏三第張四第二日八十月三年未己夏 WAH KIU YAT PO
日儒事
二期星
1979
日四廿月四年九七九一公年八十六國民中
15. Whật is the sum of the
物
中學會考試題預習專欄
理(廿九)
slope of the linear
and
graph
gainst vis
equal to
明德出版社魯榮家提供資料
-slope of the graj
Physics (29)
Suggested solutions
Revision Test (cont.)
SECTION B: HEAT, LIGHT;
SOUND AND
WAVE MOTION.
respectively touch,
Ans.).
7. Two circles
třed
(300) (1,056
radii. 9. and L
3163
externally at C DE and. TE
speed
fo
are the common tangents
is 716
Let X be the wavele
the circles. Find the length
of TC:
/3
7 – 3/3
483mm - 151mm.
664
7/3
7/3
3/3
(b). The relationship between
volume and temperature is: Volume increases linearly as temperature increases. (c) from the graph,
x = 70°C
(d) The volume coefficient of
expansion
AV
VoAt
140-100
100 (100÷0)
40
As shown in the figure
since an inverted image
the object is conside
the object 0 there fore, the image formed by the lens alone
• I) must coinside
with the centre of curvature
C of the convex mirror se that the rays from the object
will indident normally on the
mirror and retrace back.
Heal
320
482 Iz.
數學
明德出版社文長波提供資料
NATHEMATJES.
fxercise 13
Multiple Choice Questions
In the figures Tá, tangente to circle if (ACB = 80′′, (ATB
10000
0.004 °C
(Ans.
(e) The absolute zero of
temperature obtained La
this experiment is
-250 C
(Ans.)
(f) No the expansion of glass
is negligible compared with the expansion of the Fenclosed gas.
5. (a)(1) magnification,
Image distance
v (in mt
0:3
Magnification
(m)
0.5
1:0
{{i} Real-is-positive
Multinly
sites
ides
Apply
New Cartesian
0.2
Therefore real image
formed on the right
side
the lens if there is no
mirror
FC
urvature
80
> 0, b < 0) and c>0.
which of the following
ould be the graph
x(x+1)
minimum value of
is an
identity then the value.
A and I are
ely:
figure, OPOR
a rectangle.
inscribed in a quadrant
BOA, centre 0. If U - 5cm, TB = Rem find the area of
the rectangle is. sq. cm.
the length of a rectangle is 20% longer
Than and the width is 20%
Jess than those of a square,
The
their ar
.60
in the figure, AB
ADEF is an equi triangle, HrD
4DF = b end [FEC
Which of the following
true?
32. 26
The
25
in(2y+60°)
90
30
B 60
B.
then
constant
the fi
mi
0.5 x
25 m
(Ans.)
h)(i) Since §. and
S
equidistance from 0. therefore päth difference Hence maximum intensity received at C.
Constructive interference curs when path difference
where a is an integer
and A is the wavelength. As
he walks to P, the path difference is equal to onë wavelength and therefore
next maximum is rech
and
If. ABCD is a
quadrilateral
COSA
:cost
COSA = sin
cosB CosD
C÷D)
E, cos(A+C).
sin(B+D)
The given curve
graph of
then
97
13.
the figure twa unequal
intersect at A,
None of the above
Cll are straight lines. 19. The rate of working of
DAK,
Which of the following
is true
CD// HE B. CI//DK
C. [IC] + [KDC = 180o
D. AB is the mediator of CB
E. CDIE is a cyclic
quadrilateral
The remainder when
200
B. C is a
If they all do the game piece of work separately,
umber of days required the
in the ratio of
L be
ah
20. The simplest form of (tanA + cota) sin
tanz
sinA
COSA
D. sina
tan sin
ANSWER:
divided by
16. B
12
17.
according to (1)
不隨禮柯多新彩無報請遠 另報拜式采穎色任販就道 收附出印多雜華 歡訂近閱 費送版刷姿誌僑迎閱向户
5sinx
sin2x
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14% D
5. D. 10. B
15. D 20. A
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