Kuiz Fizik Tingkatan 5 Bab 7 Set 1

SELAMAT DATANG Kuiz Fizik Tingkatan 5 Bab 7 Set 1

KUIZ INI MENGANDUNGI 10 SOALAN

The concept of wave-particle duality, introduced by Louis de Broglie, suggests that:

Light behaves only as a wave, and particles like electrons behave only as particles.

All particles can exhibit wave-like characteristics.

Wave properties and particle properties are mutually exclusive and can never be observed for the same entity.

Only massless entities like photons can exhibit both wave and particle properties.

None

Which of the following applications directly uses the photoelectric effect to generate an electric current from light?

Lasers

Electron microscopes

Solar cells

Electric bells

None

What is the 'work function' (W) in the context of the photoelectric effect?

The frequency of the incident light.

The total energy of the incident photon.

The kinetic energy of the emitted electron

The minimum energy required to release an electron from a metal surface.

None

A black body is described as an ideal absorber and emitter of electromagnetic radiation. What determines the frequency (and color) of the radiation it emits?

Its temperature

Its size and shape

Its surface material

The frequency of the light it absorbs.

None

Albert Einstein expanded on Max Planck's quantum theory by proposing that light itself exists in discrete packets of energy. What are these packets called?

Corpuscles

Electrons

Quanta

Photons

None

How does Niels Bohr's model of the atom explain the production of line spectra?

Photons are emitted when electrons transition between discrete energy levels.

Electrons can orbit the nucleus at any distance with any energy.

Electrons continuously radiate energy as they orbit the nucleus.

The nucleus of the atom emits photons when it is excited.

None

What is the relationship between the power (P) of a light source and the number of photons (n) it emits per second?

Power is independent of the number of photons emitted.

Power is the energy of a single photon divided by the number of photons.

Power is equal to the number of photons emitted per second multiplied by the energy of each photon.

Power is inversely proportional to the number of photons emitted.

None

Einstein's photoelectric equation is given by hf=W+K max . What does this equation represent?

The creation of energy from a photon.

The law of conservation of energy for the photoelectric effect.

The relationship between a particle’s momentum and its wavelength.

The quantization of atomic energy levels.

None

Which phenomenon could not be explained by classical wave theory but was successfully explained by Max Planck's quantum theory?

The reflection of light from a smooth surface.

The interference pattern from a double-slit experiment.

The radiation spectrum of a black body.

The diffraction of light through a narrow slit.

None

10.

According to the relationship E=hf, if the frequency of a light wave is doubled, what happens to the energy of a single photon of that light?

It is quadrupled

It remains the same.

It is doubled

It is halved

None

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