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ayangan<br />

s ob = ~<br />

objektif<br />

(+)<br />

<br />

s' ob<br />

Fok<br />

okuler<br />

(–)<br />

s ok<br />

F ok<br />

F ob<br />

mata<br />

pengamat<br />

<br />

<br />

<br />

<br />

<br />

<br />

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<br />

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<br />

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<br />

<br />

<br />

<br />

Gambar 6.53<br />

Pembentukan bayangan oleh<br />

teleskop panggung oleh mata yang<br />

berakomodasi.<br />

Contoh 6.23 Tugas Anda 6.3<br />

<br />

<br />

<br />

<br />

<br />

<br />

sinar sejajar dari<br />

bintang/bulan<br />

yang jauh<br />

F<br />

lensa cembung<br />

(okuler)<br />

cermin<br />

cekung<br />

Anda mengenal ada dua macam<br />

teleskop, yaitu teleskop bias dan<br />

teleskop pantul. Mengapa<br />

teleskop pantul yang berukuran<br />

besar lebih mudah dibuat<br />

dibandingkan dengan teleskop<br />

bias?<br />

Gambar 6.54<br />

Teleskop pantul<br />

Cahaya dan Optika<br />

141

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