Which is not true about the similarity between muclear persamaan antara proses pembelahan dan pelakuran 38 Pernyataan manakah tidak benar mengenai 34 Persamaan berikut mewakili reputan satu nukleus uranium. The following equation represents the decay of a uranium nucleus. nukleus? fission and muclear fusion? A Menghasilkan nukleus baru Produced new uclei Th + x_ e +y'He B Mengalami kehilangan jisim Experience mass defect C Memerlukan suhu yang sangat tinggi Require very high temperature D Membebaskan tenaga yang besar Released a large amount of energy Berapakah nilai x dan y? What are the values of x and y? y A 1 39 Rajah 18 menunjukkan sinar gelombang dengan panjang gelombang 598 nm ditujukan ke permukaan logam yang mempunyai fungsi kerja 2.7 x 10-" J. Diagram 18 shows a light beam with wavelength 598 nm incident on metal surface which had work function of 2.7 × 10 º J. D 2 35 Antara pernyataan berikut, yang manakah adalah ciri sinaran gama? Which of the following statements is a characteristic of gamma radiation? A Mempunyai cas positif It has a positive charge B Sejenis gelombang elektromagnet It is an electromagnetic wave C Kuasa pengionan lebih tinggi daripada sinaran alfa It has a higher ionizing power than alpha radiation D Kuasa penembusan yang lebih rendah daripada sinaran beta It has a lower penetrating than beta radiation Cahaya Elektron Light Electron Logam Metal 36 Apabila satu bahan radioaktif diletakkan di hadapan tiub G-M, meter kadar mencatatkan 120 bilangan per minit. Selepas 6 jam, bacaan meter kadar menjadi 15 bilangan per minit. Berapakah separuh hayat bagi bahan radioaktif itu? When a radioactive element is put in front of the G-M tube, the rate meter reads 120 counts per minute. After 6 hours, the rate meter become 15 counts per minute. What is the half-life of the radioactive? A 2 jam 2 hours B 4 jam 4 jam Rajah 18 Diagram 18 Berapakah laju elekton yang terpancar keluar? What is the speed of emitted electron? [m = 9.1 × 10-" kg; h = 6.63 × 10 ª J s; c = 3.0 x 10' m s'] A 3.0 X 10° ms' B 7.4 x 10' m s C 3.7 x 10'm s' D 1.8 x 10' m s с б јаm 6 hours D 12 jam 40 Antara yang berikut, yang manakah bukan aplıkası kesan fotoelektrik? Which of the following is not using application f photoelectric effect? A Sel suria Solar cell 12 hours 37 Ahli fizik X telah menggabungkan teori Albert Einstein dan Max Planck dengan teori atom Rutherford. Siapakah ahli fizik X? Physicist X combines the theories of Albert Einstein and Max Planck with Rutherford's atomic theory. Who is the physicist X? A Thomas Young B Louis de Broglie B Pengesan cahaya pintu automatik Light detector anutomatic door C Loceng elektrik Electric alarm D Panel Suria Stesen Angkasa Antarabangsa International Space Station (ISS) solar panel C John Dalton D Niels Bohr KEDTAS
Nuclear Fusion
Nuclear fusion is a type of nuclear reaction. In nuclear fusion, two or more than two lighter atomic nuclei combine to form a heavier nucleus. During this process, an enormous amount of energy is released. This energy is called nuclear energy. Nuclear fusion is the energy source of the sun and stars.
Fusion Bomb
A fusion bomb is also known as a thermonuclear bomb or hydrogen bomb which releases a large amount of explosive energy during a nuclear chain reaction when the lighter nuclei in it, combine to form heavier nuclei, and a large amount of radiation is released. It is an uncontrolled, self-sustaining nuclear chain reaction where isotopes of hydrogen combine under very high temperature to form helium. They work on the principle of operation of atomic fusion. The isotopes of Hydrogen are deuterium and tritium, where they combine their masses and have greater mass than the product nuclei, get heated at high temperatures, and releases energy.
![persamaan antara proses pembelahan dan pelakuran
38 Pernyataan manakah tidak benar mengenaj
Which is not true about the similarity between nuclear
SULIT
4531/1
40
34 Persamaan berikut mewakili reputan satu nukleus
uranium.
The following equation represents the decay of a uranium
nucleus.
nukleus?
fission and muclear fusion?
A Menghasilkan nukleus baru
Produced new nuclei
238
U →Th + x
e+
B Mengalami kehilangan jisim
Experience mass defect
C Memerlukan suhu yang sangat tinggi
Require very high temperature
D Membebaskan tenaga yang besar
Released a large amount of energy
Berapakah nilai x dan y?
What are the values of x and y?
y
A
39 Rajah 18 menunjukkan sinar gelombang dene
panjang gelombang 598 nm ditujukan ke a
permukaan logam yang mempunyai fungsi kerja
2.7 × 10-1º J.
Diagram 18 shows a light beam with wavelength od
598 nm incident on metal surface which had work
function of 2.7 × 10º J.
2
D
35 Antara pernyataan berikut, yang manakah adalah
ciri sinaran gama?
Which of the following statements is a characteristic of
gamma radiation?
A Mempunyai cas positif
It has a positive charge
B Sejenis gelombang elektromagnet
It is an electromagnetic wave
C Kuasa pengionan lebih tinggi daripada sinaran
Cahaya
Light
Elektron
Electron
alfa
It has a higher ionizing power than alpha radiation
D Kuasa penembusan yang lebih rendah daripada
sinaran beta
Logam
Metal
It has a lower penetrating than beta radiation
36 Apabila satu bahan radioaktif diletakkan di hadapan
tiub G-M, meter kadar mencatatkan 120 bilangan
per minit. Selepas 6 jam, bacaan meter kadar
menjadi 15 bilangan per minit.
Berapakah separuh hayat bagi bahan radioaktif itu?
When a radioactive element is put in front of the G-M
tube, the rate meter reads 120 counts per minute. After
6 hours, the rate meter become 15 counts per minute.
What is the half-life of the radioactive?
A 2 jam
2 hours
Rajah 18
Diagram 18
Berapakah laju elekton yang terpancar keluar?
What is the speed of emitted electron?
[m = 9.1 × 10-3' kg; h = 6.63 × 10 ª J s;
c = 3.0 × 10' m s']
A 3.0 × 10° ms'
B 7.4 × 10° m s'
C 3.7 × 10°m s'
D 1.8 × 10° m s'
с б јат
40 Antara yang berikut, yang manakah bukan aplıkası
kesan fotoelektrik?
Which of the following is not using application f
photoelectric effecet?
A Sel suria
6 hours
B 4 jam
4 jam
D 12 jam
12 hours
37 Ahli fizik X telah menggabungkan teori Albert Einstein
dan Max Planck dengan teori atom Rutherford.
Siapakah ahli fizik X?
Physicist X combines the theories of Albert Einstein
and Max Planck with Rutherford's atomic theory.
Who is the physicist X?
A Thomas Young
B Louis de Broglie
Solar cell
B Pengesan cahaya pintu automatik
Light detector automatic door
C Loceng elektrik
Electric alarm
D Panel Suria Stesen Angkasa Antarabangsa
International Space Station (ISS) solar panel
C John Dalton
D Niels Bohr
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