BAB 7 TINGKATAN 5 FIZIK KUANTUM

BAB 7 TINGKATAN 5 FIZIK KUANTUM

5th Grade

10 Qs

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BAB 7 TINGKATAN 5 FIZIK KUANTUM

BAB 7 TINGKATAN 5 FIZIK KUANTUM

Assessment

Quiz

Physics

5th Grade

Hard

Created by

ZALIPAH Moe

Used 513+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following statements is correct about the experiment of photoelectric effect?

Antara pernyataan berikut, yang manakah betul tentang eksperimen kesan fotoelektrik?

The current generated is measured using a voltmeter.

Arus yang dihasilkan diukur menggunakan voltmeter.

Photoelectric current reaches its maximum value when the potential difference decreases.

Arus fotoelektrik mencapai nilai maksimum apabila beza keupayaan berkurang.

When the potential difference is raised, less electrons are released.

Apabila beza keupayaan dinaikkan, kurang elektron dikeluarkan.

The rate of electron emission is measured as the electric current produced.

Kadar pancaran elektron diukur sebagai arus elektrik yang dihasilkan.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The maximum kinetic energy of a particle that is produced from the process of a radioactive decay of an element is 4600 keV. The velocity of the particle is 1.49 × 107 m s-1 respectively. What is the mass of the particle?

Tenaga kinetik maksimum bagi suatu zarah yang dihasilkan daripada proses reputan radioaktif suatu unsur ialah 4600 keV. Halaju bagi zarah tersebut ialah 1.49 × 107 m s-1. Berapakah jisim zarah tersebut?

6.63 × 10-27 kg

7.32 × 10-27 kg

8.40 × 10-27 kg

9.45 × 10-27 kg

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following statements is correct about the idea of quantum theory by J.J. Thomson?

Antara pernyataan berikut, yang manakah betul mengenai cetusan idea teori kuantum oleh J.J. Thomson?

Same elements have the same type of atoms.

Unsur yang sama mempunyai jenis atom yang sama.

Light consist of particle and not waves.

Cahaya terdiri daripada zarah dan bukan gelombang.

Designed an experiment to study the behaviour of electrons.

Mereka bentuk eksperimen untuk mengkaji kelakuan elektron.

Light is made up of waves and there will be some kind of interaction when two waves meet.

Cahaya terdiri daripada gelombang dan akan berlaku beberapa jenis interaksi apabila dua gelombang bertemu.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A photon has a wavelength of 15 nm. What is the energy and frequency of the photon?

Foton mempunyai panjang gelombang 15 nm. Berapakah tenaga dan frekuensi foton tersebut?

Energy

Tenaga

1.33 × 10-17 J

Frequency

Frekuensi

2 × 1016 Hz

Energy

Tenaga

1.33 × 10-17 J

Frequency

Frekuensi

2 × 1015 Hz

Energy

Tenaga

3.33 × 10-17 J

Frequency

Frekuensi

2 × 1016 Hz

Energy

Tenaga

3.33 × 10-16 J

Frequency

Frekuensi

2 × 1016 Hz

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Satellite is widely known as a part of communication component. A laser pulse which has a wavelength of 750 nm and a power of 50 mW was performed via quantum communication. What is the total momentum transferred by the laser?

Satelit dikenali sebagai sebahagian daripada komponen komunikasi. Alur laser yang mempunyai panjang gelombang 750 nm dan kuasa 50 mW telah digunakan melalui kaedah komunikasi kuantum. Berapakah jumlah momentum yang dipindahkan oleh laser?

[h = 6.63 x 10-34 J s , c = 3.00 x 108 m s-1]

1.01 × 10-9 kg m s-2

1.67 × 10-10 kg m s-2

2.65 × 10-19 kg m s-2

3.67 × 10-19 kg m s-2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is photoelectrons?

Apakah fotoelektron?

Electrons that exist in a metal.

Elektron yang wujud dalam suatu logam.

Electrons emitted from anode to cathode.

Elektron yang dipancarkan dari anod ke katod.

Electrons emitted when the surface of metal is illuminated by a beam of light.

Elektron yang dipancarkan apabila permukaan logan disinari oleh satu alur cahaya.

Electrons that flow in a circuit when the power supply is switched on.

Elektron yang mengalir dalam satu litar apabila bekalan kuasa dihidupkan.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the meaning of work function for photoelectric effect?

Apakah maksud fungsi kerja bagi kesan fotoelektrik?

Work done in an experiment.

Kerja yang dilakukan dalam suatu eksperimen.

Minimum energy required to release electrons from a metal surface.

Tenaga minimum yang diperlukan untuk membebaskan elektron dari permukaan logam.

Maximum energy required to release electrons from a metal surface.

Tenaga maksimum yang diperlukan untuk membebaskan elektron dari permukaan logam.

Minimum frequency required to release electrons from a metal surface.

Frekuensi minimum yang diperlukan untuk membebaskan elektron dari permukaan logam

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