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Elektron dipercepat melalui beda potensial 100 volt mempunyai laju v=5,93×106 m/s. Panjang gelombang de Broglie-nya jika massa elektron 9,11×10−31 kg dan h=6,626×10−34 Js adalah....

Pertanyaan

space

Elektron dipercepat melalui beda potensial 100 volt mempunyai laju v equals 5 comma 93 cross times 10 to the power of 6 space straight m divided by straight s. Panjang gelombang de Broglie-nya jika massa elektron 9 comma 11 cross times 10 to the power of negative 31 end exponent space kg dan h equals 6 comma 626 cross times 10 to the power of negative 34 end exponent space Js adalah....

  1. 1 comma 23 cross times 10 to the power of negative 10 end exponent space straight m 

  2. 1 comma 23 cross times 10 to the power of negative 8 end exponent space straight m 

  3. 1 comma 23 cross times 10 to the power of negative 7 end exponent space straight m 

  4. 1 comma 23 cross times 10 to the power of negative 6 end exponent space straight m 

  5. 1 comma 23 cross times 10 to the power of negative 4 end exponent space straight m 

D. Kurnia

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah A

Pembahasan

table attributes columnalign right center left columnspacing 0px end attributes row v equals cell 5 comma 93 cross times 10 to the power of 6 space straight m divided by straight s end cell row m equals cell 9 comma 11 cross times 10 to the power of negative 31 end exponent space kg end cell row h equals cell 6 comma 626 cross times 10 to the power of negative 34 end exponent space Js end cell row lambda equals cell fraction numerator h over denominator m times v end fraction end cell row lambda equals cell fraction numerator 6 comma 626 cross times 10 to the power of negative 34 end exponent over denominator 9 comma 11 cross times 10 to the power of negative 31 end exponent times 5 comma 93 cross times 10 to the power of 6 end fraction end cell row lambda equals cell 0 comma 123 cross times 10 to the power of negative 9 end exponent space straight m end cell row lambda equals cell 1 comma 23 cross times 10 to the power of negative 10 end exponent space straight m end cell end table

Jadi, jawaban yang tepat adalah A

1rb+

5.0 (3 rating)

Pertanyaan serupa

Elektron diamati mempunyai panjang gelombang de Broglie sebesar 3,3 nm. Elektron tersebut mempunyai momentum sebesar …   ( h = 6,6 x 10−34 Js dan me = 9,1 x 10−31 kg )

18

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Jawaban terverifikasi

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