Interactive Science Quiz About Light

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| By Melissa Baker
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Melissa Baker
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Quizzes Created: 1 | Total Attempts: 12,404
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  • 1/20 Questions

    Which of the following is true of near-sighted people?

    • They can only see things up close, not far away.
    • They can only see things far away, not up close.
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About This Quiz

Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nm, between the infrared and the ultraviolet
Know more in this Interactive Science Quiz About Light

Interactive Science Quiz About Light - Quiz

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  • 2. 

    An image in which no light rays can pass through it is called:

    • Opaque

    • Translucent

    • Transparent

    • Pigment

    • Convex

    Correct Answer
    A. Opaque
    Explanation
    Opaque refers to an object or material that does not allow any light to pass through it. It is completely impenetrable by light, resulting in no visibility through it. Unlike translucent or transparent objects, which allow varying degrees of light transmission, opaque objects block all light rays, making them completely dark and non-transparent.

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  • 3. 

    When you see a white t-shirt, which cones are stimulated in your eyes?

    • Red Cones

    • Green Cones

    • Blue Cones

    • All 3 Cones

    • Red & Green Cones

    Correct Answer
    A. All 3 Cones
    Explanation
    When you see a white t-shirt, all three cones in your eyes are stimulated. This is because white light contains all the colors of the visible spectrum, so it activates the red, green, and blue cones in your eyes, allowing you to perceive the color white.

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  • 4. 

    Which is true of far-sighted people?

    • They can only see things up close, not far away.

    • They can only see things far away, not up close.

    Correct Answer
    A. They can only see things far away, not up close.
    Explanation
    Far-sighted people have difficulty focusing on objects that are close to them, but they can see objects that are far away more clearly. This condition, known as hyperopia, occurs when the eyeball is shorter than normal or the cornea is too flat, causing light to focus behind the retina instead of directly on it. As a result, far-sighted individuals may need to wear corrective lenses to improve their near vision.

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  • 5. 

    This types of mirror has a surface that curves inward:

    • Convex Mirror

    • Concave Mirror

    • Longitudinal Mirror

    • Opaque Mirror

    Correct Answer
    A. Concave Mirror
    Explanation
    A concave mirror has a surface that curves inward, causing light rays to converge at a focal point. This type of mirror is commonly used in reflecting telescopes and headlights of vehicles, as it can produce magnified and focused images. It is also known as a converging mirror due to its ability to bring parallel light rays together.

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  • 6. 

    Convex mirrors are thicker in the middle so they cause light rays to _______________.

    • Converge

    • Diverge

    Correct Answer
    A. Converge
    Explanation
    Convex mirrors are thicker in the middle, which causes light rays to spread out or diverge when they hit the mirror's surface. Therefore, the correct answer is "Diverge."

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  • 7. 

    Concave lenses are thinner in the middle and thicker at the edges so they cause light rays to __________________.

    • Converge

    • Diverge

    Correct Answer
    A. Diverge
    Explanation
    Concave lenses are thinner in the middle and thicker at the edges, causing them to have a curved surface that is curved inward. This curved surface causes light rays passing through the lens to spread out or diverge. Therefore, the correct answer is "Diverge."

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  • 8. 

    Einstein called particles in the form of light:

    • Light-packets

    • Quantums

    • Photons

    • Reverberations

    • Electromagnetic Radiation

    Correct Answer
    A. Photons
    Explanation
    Einstein referred to particles in the form of light as "photons." Photons are discrete packets of energy that make up electromagnetic radiation, including visible light. Einstein's theory of the photoelectric effect proposed that light is composed of these particles, which carry energy proportional to their frequency. This concept revolutionized our understanding of light and laid the foundation for the field of quantum mechanics.

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  • 9. 

    What 3 colors of light would produce white light?

    • Red, Orange & Yellow

    • Red, Yellow & Blue

    • Red, Yellow & Green

    • Red, Green & Blue

    • Red, Blue & Violet

    Correct Answer
    A. Red, Green & Blue
    Explanation
    The three primary colors of light are red, green, and blue. When these colors are combined at full intensity, they create white light. This is because each color stimulates different cone cells in our eyes, which are responsible for color perception. By combining red, green, and blue light, all three types of cone cells are stimulated simultaneously, resulting in the perception of white light.

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  • 10. 

    In a normal eye, light rays converge on the:

    • Lens

    • Retina

    • Iris

    • Pupil

    • Cochlea

    Correct Answer
    A. Retina
    Explanation
    In a normal eye, light rays pass through the lens and converge on the retina. The retina is a layer of tissue located at the back of the eye that contains specialized cells called photoreceptors. These photoreceptors detect the light and convert it into electrical signals that can be interpreted by the brain. Therefore, the retina plays a crucial role in the process of vision by capturing the focused light and transmitting visual information to the brain for interpretation.

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  • 11. 

    Which of the following lists the 6 colors of the visible spectrum from shortest to longest wavelength?

    • Red, Orange, Yellow, Green, Blue, Violet

    • Violet, Blue, Green, Yellow, Orange, Red

    Correct Answer
    A. Violet, Blue, Green, Yellow, Orange, Red
    Explanation
    The visible spectrum is the range of colors that can be seen by the human eye. The colors in the spectrum are ordered based on their wavelengths, with shorter wavelengths corresponding to colors like violet and blue, and longer wavelengths corresponding to colors like yellow and red. Therefore, the correct answer is Violet, Blue, Green, Yellow, Orange, Red, as it lists the colors in the visible spectrum from shortest to longest wavelength.

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  • 12. 

    Light is best described as a:

    • Particle

    • Wave

    • Point

    • Particle and Wave

    • Point and Wave

    Correct Answer
    A. Particle and Wave
    Explanation
    Light is best described as a particle and wave because it exhibits properties of both. The wave nature of light is evident in phenomena such as interference and diffraction, where light waves can interfere with each other and bend around obstacles. On the other hand, the particle nature of light is demonstrated by the photoelectric effect, where light behaves as discrete packets of energy called photons. This duality of light is explained by quantum mechanics, which states that particles like photons can exhibit wave-like behavior.

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  • 13. 

    This type of electromagnetic wave has the most penetrating power:

    • X-rays

    • UV Rays

    • Radio waves

    • Gamma Rays

    • Infrared waves

    Correct Answer
    A. Gamma Rays
    Explanation
    Gamma rays have the most penetrating power among the given options. This is because gamma rays have the highest frequency and shortest wavelength, allowing them to carry a high amount of energy. As a result, they can easily penetrate through materials and tissues, making them useful in medical imaging and cancer treatment. Gamma rays can also cause ionization, which can be harmful to living organisms.

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  • 14. 

    An image in which no light rays pass through it is called a:

    • Real Image

    • Virtual Image

    • Reflection

    • Refraction

    • Diffraction

    Correct Answer
    A. Virtual Image
    Explanation
    A virtual image is formed when light rays appear to come from a point behind the mirror or lens, but they do not actually pass through that point. In other words, the image is not formed by the convergence of actual light rays. In the case of an image in which no light rays pass through it, it can be inferred that the image is not formed by the actual propagation of light, making it a virtual image.

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  • 15. 

    The biggest disadvantage of incandescent lighting is:

    • It's expensive

    • It's not good for the environment

    • It's not heat efficient

    • It's not white light

    Correct Answer
    A. It's not heat efficient
    Explanation
    Incandescent lighting is not heat efficient because a large portion of the energy it consumes is converted into heat rather than light. This inefficiency results in wasted energy and higher electricity bills. Additionally, the excess heat generated by incandescent bulbs can also pose a fire hazard. Therefore, this drawback makes incandescent lighting less practical and cost-effective compared to other lighting options.

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  • 16. 

    People who are near-sighted need a ______________ lens to diverge light rays because their eyeball is too ________.

    • Convex, long

    • Concave, long

    • Convex, short

    • Concave, short

    Correct Answer
    A. Concave, long
    Explanation
    People who are near-sighted have a condition called myopia, where their eyeball is longer than normal. This causes light rays to focus in front of the retina instead of directly on it, resulting in blurred vision for distant objects. To correct this, a concave lens is used. A concave lens diverges light rays, causing them to spread out before entering the eye. This helps to compensate for the longer eyeball and allows the light rays to focus properly on the retina, improving vision for near-sighted individuals.

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  • 17. 

    This type of mirror makes everything look HUGE!

    • Convex Mirror

    • Magnitude Mirror

    • Maximize Mirror

    • Concave Mirror

    Correct Answer
    A. Concave Mirror
    Explanation
    A convex mirror is a type of mirror that makes objects appear smaller and farther away than they actually are. It has a curved surface that bulges outward, causing light rays to diverge. This divergence of light rays results in a wider field of view but reduces the size of the reflected image. Therefore, a convex mirror cannot make everything look huge. On the other hand, a concave mirror has a curved surface that bulges inward, causing light rays to converge. This convergence of light rays can create magnification, making objects appear larger than their actual size. Hence, a concave mirror is the correct answer for a mirror that can make everything look huge.

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  • 18. 

    When waves in phase combine, it is called:

    • Destructive Combination

    • Constructive Combination

    • Destructive Interference

    • Constructive Interference

    • Loud

    Correct Answer
    A. Constructive Interference
    Explanation
    Constructive interference occurs when waves in phase combine, resulting in an increased amplitude. This means that the peaks of the waves align with each other, reinforcing each other and creating a larger wave. In this case, the correct answer is "Constructive Interference" because it accurately describes the phenomenon of waves combining in phase to create a stronger wave.

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  • 19. 

    In your eyes, these detect light brightness:

    • Rods

    • Cones

    • Lenses

    • Irises

    • Retinas

    Correct Answer
    A. Rods
    Explanation
    Rods are photoreceptor cells located in the retina of the eye that are responsible for detecting light brightness. They are highly sensitive to low levels of light and are mainly responsible for peripheral and night vision. Cones, on the other hand, are responsible for color vision and visual acuity in bright light conditions. Lenses and irises are not directly involved in detecting light brightness, but they play a role in focusing and controlling the amount of light entering the eye. Therefore, the correct answer is Rods.

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  • 20. 

    How much a wave will bend depends on: 

    • The wavelength of light in both materials

    • The frequency of light in both materials

    • The radiation given off in both materials

    • The speed of light in both materials

    • All the above

    Correct Answer
    A. The speed of light in both materials
    Explanation
    The speed of light in a material determines how much the wave will bend when it enters or exits that material. This is because the speed of light changes when it travels from one medium to another. The change in speed causes the wave to change direction, a phenomenon known as refraction. The other factors listed, such as wavelength, frequency, and radiation, do not directly affect the bending of the wave. Therefore, the correct answer is the speed of light in both materials.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 14, 2009
    Quiz Created by
    Melissa Baker
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