Roboguru

Elektron dipercepat melalui beda potensial 100 volt mempunyai laju . Panjang gelombang de Broglie-nya jika massa elektron  dan  adalah....

Pertanyaan

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 

Pembahasan Soal:

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

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 04 Mei 2021

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ikuti Kami

©2021 Ruangguru. All Rights Reserved