
radiasi benda hitam 1.3
Quiz
•
Arts
•
1st Grade
•
Easy
Pekik Wicaksono
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektron bermassa 9,0 x 10−31 kilogram bergerak dengan kecepatan 2,2 x 107ms−1 (Tetapan Planck = 6,6 x 10−34 Js) memiliki panjang gelombang de Broglie sebesar.....
A. 3,3 x 10−11 m
B. 4,5 x 10−11 m
C. 5,2 x 10−11 m
D. 6,7 x 10−11 m
E. 8,0 x 10−11 m
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda berwarna hitam memancarkan energi sebesar R J.s-1. Benda tersebut bersuhu 270C. Jika benda hitam tersebut dipanaskan hingga 327 0C maka berapa energi radiasinya?
15 R J.s-1
14 R J.s-1
16 R J.s-1
18 R J.s-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu permukaan logam yang fungsi kerjanya 4 . 10-19 joule disinari cahaya yang panjang gelombangnya 3300 Ǻ. Tetapan Planck = 6,6 . 10-34 J.s dan cepat rambat cahaya = 3 . 108 m/s, energi kinetik maksimum elektron adalah...
A. 2,4 . 10-21 joule
B. 1,2 . 10-20 joule
C. 2,0 . 10-19 joule
D. 4,6 . 10-19 joule
E. 6. 10-18 joule
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Panjang gelombang radiasi maksimum suatu benda pada suhu T Kelvin adalah 6000 Å. Jika suhu benda naik hingga menjadi 3/2 T Kelvin , tentukan panjang gelombang radiasi maksimum benda!
4000 Å
3000 Å
2000 Å
1000 Å
5000 Å
5.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Frekuensi cahaya tampak 5 . 1014 Hz. Jika h = 6,625 . 10-34 J.s, maka besar energi fotonnya adalah...
3,975 . 10-19 Joule
2,975 . 10-19 Joule
1,975 . 10-19 Joule
3,30 . 10-19 Joule
5,975 . 10-19 Joule
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Permukaan benda pada suhu 37oC meradiasikan gelombang elektromagnetik . Bila nilai konstanta Wien = 2,898 x 10 −3 m.K, maka panjang gelombang maksimum radiasi permukaaan adalah....
A. 8,898 x 10−6 m
B. 9,348 x 10−6 m
C. 9,752 x 10−6 m
D. 10,222 x 10−6 m
E. 1,212 x 10−6 m
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebuah benda hitam sempurna dengan luas permukaan 100 cm2 bersuhu 1000 K. Jika tetapan Stefan Boltzman 5,67 x 10-8 W/m2K4, energi yang dipancarkannya setiap 1 sekon adalah ....
0,0567 J
0,567 J
5,67 J
56,7 J
567 J
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