What is Light?

What is the smallest quantity of energy that can be transported?

• Electron

• Proton

• Photon

• Neutron

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What property of light allows it to act as both a particle and a wave?

• Wave-particle duality

• Electromagnetic radiation

• Photon energy

• Quantum mechanics

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What is the significance of the wave-particle duality of light?

• It explains the structure of atoms

• It is crucial for understanding quantum mechanics

• It determines the color of light

• It affects the speed of light

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How do gamma rays compare to visible light in terms of wavelength?

• Shorter wavelengths

• Same wavelengths

• Gamma rays do not have wavelengths

• Longer wavelengths

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Which part of the electromagnetic spectrum is visible to the human eye?

• Infrared

• Visible light

• Ultraviolet

• Gamma rays

What is the range of wavelengths for visible light?

• 400-700 nanometers

• 100-1000 kilometers

• 10-100 micrometers

• 1-10 picometers

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What makes visible light special compared to other electromagnetic waves?

• It is the most abundant

• It has the highest energy

• It can be seen by humans

• It is the fastest

Why did eyes likely evolve to perceive visible light?

• Because it was the easiest for early organisms to detect

• Due to its ability to travel through water

• Visible light was the most abundant on early Earth

• Because it is the most powerful form of electromagnetic radiation

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What happens when light interacts with matter?

• It becomes invisible

• It always reflects

• It can be absorbed or altered, providing information about the surroundings

• It turns into heat

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Why is visible light important for survival?

• It is used for communication

• It allows us to gather information about our surroundings quickly

• It keeps the Earth warm

• It helps in photosynthesis

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