Physical Science Quiz 8

What is the speed of light in a vacuum?

• 300,000 meters per second

• 300,000 kilometers per squared of a second

• 300,000,000 meters per second

• 300,000,000 kilometers per second per second

Who proposed the Corpuscular Theory?

• Isaac Newton

• Christiaan Huygens

• James Clerk Maxwell

• Anita Max Wyn

Explain Wave-Particle Duality Model.

• Assumes that light travels in straight lines and exhibits particle-like behavior.

• Explains various optical phenomena, including interference, diffraction, reflection, and refraction and describes light as a transverse electromagnetic wave.

• Light (photons) striking a material surface can eject electrons, and the kinetic energy of these ejected electrons is dependent on the frequency (color) of the incident light, not its intensity.

• Describes particles, such as electrons and photons, as having both wave and particle properties depending on the experimental conditions.

Explain Light Wave Model.

• Assumes that light travels in straight lines and exhibits particle-like behavior.

• Explains various optical phenomena, including interference, diffraction, reflection, and refraction and describes light as a transverse electromagnetic wave.

• Light (photons) striking a material surface can eject electrons, and the kinetic energy of these ejected electrons is dependent on the frequency (color) of the incident light, not its intensity.

• Describes particles, such as electrons and photons, as having both wave and particle properties depending on the experimental conditions.

Illustrate refraction of the light in wave model.

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Illustrate reflection of the light in particle model.

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Analyze which of the statements below does not refer to photons.

• Photons are elementary particles and are considered to be massless.

• Photons are electrically charged; they carry a positive, electric charge.

• Photons have both wave and particle properties.

• Photons are emitted during the photoelectric effect.

Differentiate visible light and ultraviolet light.

• Visible light is usually not harmful to living organisms, while ultraviolet light can have harmful effects on living tissues.

• Visible light ranges from approximately 400 to 700 nanometers (nm). While ultraviolet light has shorter wavelengths than visible light, typically ranging from about 10 to 400 nm.

• Both statements

• Neither of the choices

White light is composed of light waves with a range of wavelengths corresponding to the colors of the visible spectrum that includes violet, indigo, blue, green, yellow, black, and red. When white light passes through a prism, it undergoes dispersion, revealing its component colors.

• First statement is true, while second statement is false.

• First statement is false, while second statement is true.

• All statements are true.

• All statements are false.

Newton observed that color is not inherent in objects but instead, the surface of an objects reflects some colors and absorbs all the others. We perceived only the reflected colors.

• First statement is true, while second statement is false.

• First statement is false, while second statement is true.

• All statements are true.

• All statements are false.