Teori Atom Mekanika Kuantum
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Questions and Answers
- 1.
Berikut ini percobaan yang mendukung teori atom mekanika kuantum, kecuali…
- A.
Efek fotolistrik
- B.
Eksperimen compton
- C.
Eksperimen difraksi berkas elektron
- D.
Radiasi benda mampat
- E.
Penembakan partikel alfa terhadap lempeng tipis
Correct Answer
E. Penembakan partikel alfa terhadap lempeng tipisExplanation
The experiment of shooting alpha particles at a thin plate is not related to the quantum mechanics theory of atoms. This experiment is known as the Rutherford scattering experiment and it provided evidence for the existence of a small, dense, positively charged nucleus within an atom. It did not provide any support for the quantum mechanical nature of atoms.Rate this question:
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- 2.
Para ahli berikut yang tidak mengemukakan teori atom modern adalah…
- A.
Louis de Broglie
- B.
Erwim Schrodinger
- C.
W. Heisenberg
- D.
Neils Bohr
- E.
Aufbau
Correct Answer
D. Neils BohrExplanation
Neils Bohr is not considered to have proposed the modern theory of the atom. Although he made significant contributions to the field of atomic physics, including the development of the Bohr model of the atom, his model was eventually replaced by the modern quantum mechanical model proposed by Erwin Schrodinger and Werner Heisenberg. Bohr's model was based on classical mechanics and did not fully account for the wave-particle duality of electrons. Therefore, the correct answer is Neils Bohr.Rate this question:
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- 3.
Dualisme gelombang – partikel dikemukakan oleh…
- A.
Louis de Broglie
- B.
Erwin Schrodinger
- C.
W. Heisenberg
- D.
Einstein
- E.
Max Planck
Correct Answer
A. Louis de BroglieExplanation
Louis de Broglie proposed the concept of wave-particle duality, which suggests that particles, such as electrons, can exhibit both wave-like and particle-like properties. This theory was a significant development in quantum mechanics and helped to explain the behavior of subatomic particles. De Broglie's idea was supported by experimental evidence and further expanded upon by other physicists, such as Schrodinger and Heisenberg. Einstein and Planck made important contributions to quantum theory, but they did not specifically propose the concept of wave-particle duality.Rate this question:
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- 4.
Tidak mungkin dapat ditentukan kedudukan dan momentum suatu benda secaraseksama pada saat bersamaan. Pernyataan ini dikemukakan oleh…
- A.
Louis de Broglie
- B.
Erwin Schrodinger
- C.
W. Heisenberg
- D.
Einstein
- E.
Max Planck
Correct Answer
C. W. HeisenbergExplanation
Werner Heisenberg proposed the uncertainty principle, which states that it is impossible to determine both the position and momentum of a particle with absolute certainty simultaneously. This principle is a fundamental concept in quantum mechanics and has significant implications for our understanding of the behavior of particles at the subatomic level.Rate this question:
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- 5.
Eksperimen difraksi berkas elektron mendukung teori…
- A.
Gelombang cahaya
- B.
Dualisme gelombang partikel
- C.
Teori kuantum
- D.
Ketidaktentuan
- E.
Eksperimen Compton
Correct Answer
B. Dualisme gelombang partikelExplanation
The correct answer is "Dualisme gelombang partikel". This is because the experiment of electron diffraction supports the concept of dualism, which proposes that particles like electrons can exhibit both wave-like and particle-like properties. This concept was first introduced by Louis de Broglie and is a fundamental principle of quantum mechanics. The experiment of electron diffraction provides evidence for the wave-like nature of electrons, as they exhibit interference patterns similar to those observed in the diffraction of light waves.Rate this question:
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- 6.
Kebolehjadian ditemukannya elektron pada jarak tertentu dari inti atom dikemukakan oleh…
- A.
Louis de Broglie
- B.
Erwin Schrodinger
- C.
W. Heisenberg
- D.
Max Planck
- E.
Einstein
Correct Answer
B. Erwin SchrodingerExplanation
Erwin Schrodinger proposed the concept of wave mechanics, which describes the behavior of particles, including electrons, as waves. According to his theory, the position of an electron cannot be precisely determined, but rather exists as a probability distribution or wave function. This means that the electron can be found at various distances from the nucleus with different probabilities. Schrodinger's wave equation allows us to calculate the probability of finding an electron at a particular distance from the nucleus, providing a more accurate description of electron behavior compared to previous models. Therefore, Erwin Schrodinger is the most appropriate choice for explaining the probability of finding an electron at a certain distance from the atomic nucleus.Rate this question:
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- 7.
Daerah di sekitar inti dengan kebolehjadian untuk mendapatkan elektron disebut…
- A.
Sub orbit
- B.
Sub kulit
- C.
Kulit
- D.
Orbit
- E.
Orbital
Correct Answer
E. OrbitalExplanation
An orbital is the region around the nucleus of an atom where an electron is most likely to be found. It is a three-dimensional space that can hold up to two electrons with opposite spins. The other options mentioned, such as sub orbit, sub kulit, kulit, and orbit, are not accurate terms used in atomic structure. Therefore, the correct answer is orbital.Rate this question:
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- 8.
Fakta yang mendukung teori dualisme gelombang dan partikel adalah…
- A.
Riak permukaan air
- B.
Petir dan kilat
- C.
Efek fotolistrik
- D.
Efek compton
- E.
Difraksi dan interferensi cahaya
Correct Answer
B. Petir dan kilatExplanation
Petir dan kilat dapat mendukung teori dualisme gelombang dan partikel karena fenomena ini melibatkan interaksi antara partikel-partikel bermuatan (partikel) dalam atmosfer yang menghasilkan kilatan cahaya yang memiliki sifat gelombang. Selain itu, kilatan petir juga dapat menghasilkan suara yang merambat dalam bentuk gelombang suara. Hal ini menunjukkan bahwa fenomena petir dan kilat melibatkan sifat gelombang dan partikel secara bersamaan, yang sesuai dengan teori dualisme gelombang-partikel.Rate this question:
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- 9.
Rumusan dari hipotesis Max Planck dan Einstein adalah…
- A.
Efek fotolistrik
- B.
Efek compton
- C.
Efek terobosan
- D.
Persamaan gelombang
- E.
Partikel dalam kotak
Correct Answer
A. Efek fotolistrikExplanation
The correct answer is "Efek fotolistrik". The hypothesis of Max Planck and Einstein explains the phenomenon of the photoelectric effect, which is the emission of electrons from a material when it is exposed to light. This effect cannot be explained by classical wave theory, but the hypothesis proposed by Planck and later supported by Einstein introduced the concept of photons and their energy being transferred to electrons, causing them to be ejected from the material.Rate this question:
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- 10.
Fungsi persamaan Schrodinger untuk menentukan kedudukan…
- A.
Proton dalam tiga demensi
- B.
Neutron dalam tiga dimensi
- C.
Elektron dalam tiga dimensi
- D.
Proton dalam orbital
- E.
Neutron dalam orbital
Correct Answer
C. Elektron dalam tiga dimensiExplanation
The Schrodinger equation is used to determine the position of particles, such as electrons, in three dimensions. This equation describes the behavior of quantum systems and provides information about the probability distribution of finding an electron in a particular region of space. By solving the Schrodinger equation, one can obtain the wave function of the electron, which gives insight into its spatial distribution. Therefore, the correct answer is "Elektron dalam tiga dimensi."Rate this question:
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