Light Waves

What part of the electromagnetic spectrum can human eyes detect?

• Only ultraviolet and infrared light

• Only visible light

• Only radio waves and microwaves

• The entire electromagnetic spectrum

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What is light described as in terms of its physical nature?

• Only a particle

• Only a wave

• Neither a wave nor a particle

• Both a wave and a particle

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How does the wavelength of light relate to its energy?

• Longer wavelengths have higher energy

• Wavelength and energy are unrelated

• Longer wavelengths have lower energy

• Shorter wavelengths have lower energy

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What does the energy of a light wave determine?

• Its ability to travel through space

• Its color

• Its speed

• How it interacts with matter

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What do the cones in our retina detect?

• Different energies of light

• Pressure changes

• Sound waves

• Brightness levels

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Why can't humans see ultraviolet light?

• It has too little energy to be detected

• Both A and C

• The eye absorbs it before it reaches the retina

• It has too much energy for the retina to detect

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What enables us to detect light outside the visible spectrum?

• Intense concentration

• Special glasses

• Digital eyes or special detectors

• Exposure to sunlight

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What analogy is used to describe the universe if we could only see visible light?

• A book with blank pages

• A silent movie

• A painting with only one color

• A black and white photograph

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How does the Hubble Space Telescope contribute to our understanding of the universe?

• By capturing images in multiple spectrums of light

• By observing the universe in ultraviolet light

• By detecting only visible light

• By listening to radio waves from space

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Why is it important to study light beyond the visible spectrum?

• To improve television and radio reception

• To enhance the color spectrum in art

• To better understand the universe

• To create more efficient light bulbs

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