
Uji Kompetensi Radiasi Benda Hitam

Quiz
•
Physics
•
2nd Grade
•
Hard
andi ruspandi
FREE Resource
31 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Emisivitas suatu benda menyatakan kemampuan benda untuk menyerap dan memancarkan radiasi kalor dibandingkan dengan benda hitam sempurna.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Hukum pergeseran Wien dinyatakan dengan: mλ = panjang gelombang maksimum (m) T = suhu mutlak (K) C = tetapan Wien (2,898 x 10-3 mK).
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Dua lampu pijar A dan B bersuhu 27 oC dan 127 oC berbentuk bulat dengan jari-jari lampu A = jari-jari lampu B. Tentukan perbandingan daya radiasi lampu A terhadap lampu B !
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Sebuah lubang kecil pada dinding tanur menyerupai benda hitam. Jika luas lubang 1 cm2 dan suhunya 1772 oC, berapa energi kalor yang diradiasikan ke luar lubang setiap detik ?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Tubuh seseorang bersuhu 38 oC. Tentukan panjang gelombang spectrum radiasi maksimum !
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Berapakah besarnya frekuensi dan panjang gelombang dari sebuah foton yang memiliki energi 4,42 x 10-19 J ?
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Lampu Natrium 40 W meancarkan cahaya kuning dengan panjang gelombang 5800 A o (1 A o = 10-10 m). Tentukan jumlah foton yang dipancarkan lampu tersebut !
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