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Sebuah foton memiliki energi . Jika konstanta Planck  dan cepat rambat foton , maka momentum foton adalah ....

Pertanyaan

Sebuah foton memiliki energi begin mathsize 14px style 3 cross times 10 to the power of 6 space eV end style. Jika konstanta Planck begin mathsize 14px style 6 comma 6 cross times 10 to the power of negative 34 end exponent space straight J. straight s end style dan cepat rambat foton begin mathsize 14px style 3 cross times 10 to the power of 8 space straight m divided by straight s end style, maka momentum foton adalah ....

  1. begin mathsize 14px style 3 comma 2 cross times 10 to the power of negative 18 end exponent space kg space straight m divided by straight s end style 

  2. begin mathsize 14px style 1 comma 6 cross times 10 to the power of negative 18 end exponent space kg space straight m divided by straight s end style 

  3. begin mathsize 14px style 1 comma 6 cross times 10 to the power of negative 21 end exponent space kg space straight m divided by straight s end style 

  4. begin mathsize 14px style 3 comma 2 cross times 10 to the power of 18 space kg space straight m divided by straight s end style 

  5. begin mathsize 14px style 6 comma 3 cross times 10 to the power of 16 space kg space straight m divided by straight s end style 

Pembahasan Video:

Pembahasan Soal:

Momentum foton yaitu:

begin mathsize 14px style p equals E over c p equals fraction numerator 3 cross times 10 to the power of 6 cross times 1 comma 6 cross times 10 to the power of negative 19 end exponent over denominator 3 cross times 10 to the power of 8 end fraction p equals 1 comma 6 cross times 10 to the power of negative 21 end exponent space kg space straight m divided by straight s end style 

 

Jadi, jawaban yang benar adalah C. 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

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