Pertanyaan

Panjang gelornbang cahaya tarnpak rnulai darI 4000 A O sarnpai dengan 6000 A O ( 1 A O = 1 0 − 10 m ). Tentukan lebar frekuensi gelornbang cahaya.

Panjang gelornbang cahaya tarnpak rnulai darI $4000 A O$ sarnpai dengan $6000 A O$ ( $1 A O = 1 0^{- 10} m$ ). Tentukan lebar frekuensi gelornbang cahaya.

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Jawaban terverifikasi

Jawaban

lebar frekuensi gelombang cahaya sebesar .

lebar frekuensi gelombang cahaya sebesar

Pembahasan

Lebar rekuensi gelombang cahaya sebesar Jadi, lebar frekuensi gelombang cahaya sebesar .

Lebar rekuensi gelombang cahaya sebesar

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row v equals cell lambda f end cell row c equals cell lambda f end cell row f equals cell c over lambda end cell row cell f subscript 1 end cell equals cell c over lambda subscript 1 end cell row blank equals cell fraction numerator 3 cross times 10 to the power of 8 over denominator 4000 cross times 10 to the power of negative 10 end exponent end fraction end cell row blank equals cell fraction numerator 30000 cross times 10 to the power of 14 over denominator 4000 end fraction end cell row blank equals cell 7 comma 5 cross times 10 to the power of 14 space end exponent Hz end cell row cell f subscript 2 end cell equals cell c over lambda subscript 2 end cell row blank equals cell fraction numerator 3 cross times 10 to the power of 8 over denominator 5000 cross times 10 to the power of negative 10 end exponent end fraction end cell row blank equals cell fraction numerator 30000 cross times 10 to the power of 14 over denominator 5000 end fraction end cell row blank equals cell 6 cross times 10 to the power of 14 space end exponent Hz end cell end table end style$

Jadi, lebar frekuensi gelombang cahaya sebesar .