Uploaded by Aoxue Chen

optics homework

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shows the total
figure ca
蠿 虊熊
3.8 1
E0
Jhs.my
2
b The electric power
C
The
iii
26
15
S
area
E
Jks.mg
Ex Sx Tx
1.93
5
E
the
S
area
10
24 ⼼心
ㄨ
GE
d E
To
J
42 N
About 352 times
E
the number
n
e
1.8
mi
of
噐
10
13
2
of
area
the stateofNorth
Carolina
2.3 xijks.mn
my eyes
J
photons n
⼏几 ⼆二
to
4.9 xlókm
S
1260 x 3.8 1026
4元ㄨ 430ㄨ3 108 365 4 3too2
P
a
373km2
The power arriving from Polaris
2
2
2
576 ˋ_ ⼼心 ⼆二 1365X24ㄨ3600
2ns
109
5
4.9 107 ⼆二 352
ie
⼆二 1.34 x 103
generate the world's supplyofelectricity
To
f
an N
3.2 109
1.8
2
0
1.6x i
9
⼆二 5.6
105
个
Is
Since the divergence angle Q 渠 thesolidangle at Ea 的 about
mi
L
d
些
pdA.cl ⼀一⼆二Zǒ
⼆二
w
L 4元
不不
⼉儿
是
⼆二 1125x109
1.57 104W.fr the Lamberton
Yang
point source
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