PHYSICS FIZIK KSSM F5: CHAPTER 7.2 - 7.3
Quiz
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Physics
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11th - 12th Grade
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Practice Problem
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Medium
UMAIR MOHAMAD
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“When a metal surface is illuminated by a beam of light at a certain frequency, electrons can be emitted from the metal.” The following statement is the definition for
“Apabila suatu permukaan logam disinari oleh alur cahaya yang mempunyai frekuensi tertentu, elektron daripada logam itu dapat dipancar keluar.” Pernyataan berikut adalah definisi bagi
Photoelectric Effect
Kesan Fotoelektrik
Photonelectric Effect
Kesan Fotonelektrik
Energy of quantum
Tenaga kuantum
Planck’s constant
Pemalar Planck
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following are characteristics of photoelectric effect?
Antara berikut, manakah ciri-ciri bagi kesan fotoelektrik?
The lower the frequency of the photon of light, the higher the kinetic energy of the photoelectrons emitted from the metal surface.
Semakin rendah frekuensi foton cahaya, semakin tinggi tenaga kinetik fotoelektron yang dipancarkan daripada permukaan logam.
The higher the frequency of the photon of light, the higher the kinetic energy of the photoelectrons emitted from the metal surface.
Semakin tinggi frekuensi foton cahaya, semakin tinggi tenaga kinetik fotoelektron yang dipancarkan daripada permukaan logam.
The kinetic energy of photoelectrons does not depend on the intensity of light.
Tenaga kinetik fotoelektron tidak bergantung pada keamatan cahaya.
The minimum frequency of light needed for a metal to emit electrons is known as the threshold frequency.
Frekuensi minimum yang dapat mengeluarkan elektron dikenali sebagai frekuensi ambang.
The minimum frequency of light needed for a metal to emit electrons is known as the critical frequency.
Frekuensi minimum yang dapat mengeluarkan elektron dikenali sebagai frekuensi genting.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“The minimum frequency required to produce photoelectric effect on a metal.” The following is the definition for
“Frekuensi minimum yang boleh menghasilkan kesan fotoelektrik pada satu jenis logam.” Berikut adalah definisi bagi
Planck’s Frequency
Frekuensi Planck
Critical frequency
Frekuensi genting
Threshold frequency
Frekuensi ambang
Work function
Fungsi kerja
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the energy of each proton and the frequency of light?
Apakah hubungan diantara tenaga setiap proton dan frekuensi cahaya?
Linearly increase
Meningkat secara linear
Constant
Malar
Inversely proportional
Berkadar songsang
Directly proportional
Berkadar terus
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“The minimum energy required for a photoelectron to be emitted from a metal surface.” The following is a definition for
“Tenaga minimum yang diperlukan untuk fotoelektron terlepas dari permukaan logam.” Berikut adalah definisi bagi
Planck’s Frequency
Frekuensi Planck
Work function
Fungsi kerja
Threshold frequency
Frekuensi ambang
Thermionic emission
Pancaran termion
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A light with a frequency of 6.70 × 1015 Hz is shone on a clean caesium metal surface. What is the maximum kinetic energy of photoelectrons emitted?
[Work function of caesium = 3.43 × 10–19 J, Planck’s constant = 6.63 × 10–34 J s]
Cahaya yang berfrekuensi 6.70 × 1015 Hz disinarkan ke atas permukaan logam cesium yang bersih. Berapakah tenaga kinetik maksimum fotoelektron yang terpancar keluar?
[Fungsi kerja cesium = 3.43 × 10–19 J, pemalar Planck = 6.63 × 10–34 J s]
6.70 x 10-15 J
4.10 x 10-19 J
-6.70 x 1015 J
-4.10 x 1019 J
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum velocity of the photoelectron emitted when a monochromatic light ( wavelength = 600 nm) is shone on a metal which has a work function of 1.80 eV?
Berapakah halaju maksimum fotoelektron yang terpancar keluar apabila cahaya monokromatik (panjang gelombang = 600 nm) disinarkan ke atas logam yang mempunyai fungsi kerja 1.80 eV?
[Given c = 3 x 10^-8 m s-1, 1 eV = 1.60 × 10^–19 J, mass of electron, m = 9.11 × 10^–31 kg]
3.09 x 10^5 ms-1
1.76 x 10^-6 ms-1
3.09 x 10^-5 ms-1
1.76 x 10^6 ms-1
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