
Kuis 1 Fisika 3 FTI 2025
Quiz
•
Physics
•
University
•
Hard

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35 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Radiasi benda hitam hanya bergantung pada sifat material benda tersebut.
Benar
Salah
Answer explanation
Radiasi benda hitam hanya bergantung pada temperatur, bukan material
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Jika suatu logam A memiliki fungsi kerja lebih kecil daripada logam B, maka pada penyinaran dengan cahaya berfrekuensi sama, elektron yang terlepas dari logam A akan memiliki energi kinetik maksimum lebih besar.
Benar
Salah
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hukum Wien menyatakan bahwa panjang gelombang maksimum radiasi berbanding terbalik dengan suhu mutlak.
Benar
Salah
Answer explanation
Benar; λmax T = konstanta (2,9×10⁻³ m·K)
4.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Energi kinetik maksimum elektron pada efek fotolistrik bergantung pada intensitas cahaya.
Benar
Salah
Answer explanation
EKmax bergantung pada frekuensi cahaya, bukan intensitas.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Efek Compton menunjukkan bahwa foton bersifat seperti partikel.
Benar
Salah
Answer explanation
Pergeseran panjang gelombang terjadi karena tumbukan elastis foton dengan elektron.
6.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Diketahui temperatur benda hitam 5800 K. Jika c=(2,9×10⁻³ m·K), maka λmax adalah ....... nm
7.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Semakin tinggi suhu benda hitam, spektrum radiasi yang dipancarkan akan bergeser ke panjang gelombang lebih panjang.
Benar
Salah
Answer explanation
Salah, Menurut hukum Wien, T naik jika λmax turun (geser ke arah panjang gelombang lebih pendek).
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