What Do You Know About Photobiology?

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1/10 Questions

Photobiology studies the interactions of light with
- Sand
- Air
- Water
- Living organisms

About This Quiz

What do you know about this discipline? Have you taken a course? Are you a scholar? How solid is your knowledge? Take this quiz. Have fun.

What Do You Know About Photobiology? - Quiz

2.

The energy required to ionize an oxygen atom is
- 10 eV
- 105eV
- 96eV
- 2eV
Correct Answer

A. 10 eV

Explanation

The energy required to ionize an oxygen atom is 10 eV. Ionization refers to the process of removing an electron from an atom, turning it into an ion. The energy required for this process depends on the specific atom. In the case of oxygen, it takes 10 eV of energy to remove an electron and ionize the atom.

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3.

It also studies
- Photosynthesis
- Law
- Air
- Music
Correct Answer

A. Photosynthesis

Explanation

The correct answer is "photosynthesis" because the question states that "it also studies" and then lists various topics. Among the listed topics, only "photosynthesis" is a subject that can be studied. The other options, such as "law," "air," and "music," are not typically studied in the same context as the other topics listed.

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4.

The organ responsible for the sense of sight is the
- Hair
- Nail
- Eye
- Skin
Correct Answer

A. Eye

Explanation

The organ responsible for the sense of sight is the eye. The eye contains various structures such as the cornea, iris, lens, and retina, which work together to capture and focus light onto the retina. The retina then converts the light into electrical signals that are sent to the brain via the optic nerve, allowing us to perceive and interpret visual information.

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5.

The main source of light on earth is
- Ray
- Beam
- Sun
- Light
Correct Answer

A. Sun

Explanation

The sun is the main source of light on earth. It emits electromagnetic radiation, including visible light, which illuminates our planet. This light is essential for various biological processes, such as photosynthesis in plants and the regulation of circadian rhythms in animals. Additionally, sunlight provides warmth and energy, making it crucial for sustaining life on earth.

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6.

Green plants make their food through
- Cooking
- Photosynthesis
- System
- Flow
Correct Answer

A. Photosynthesis

Explanation

Green plants make their food through photosynthesis. Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. This process occurs in the chloroplasts of plant cells, specifically in the chlorophyll pigment. Through photosynthesis, plants are able to produce their own food and release oxygen as a byproduct, which is essential for the survival of all living organisms.

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7.

A primary property of visible light is
- Intensity
- Light
- Visible
- Ray
Correct Answer

A. Intensity

Explanation

Visible light is characterized by its intensity, which refers to the amount of energy carried by the light waves. Intensity determines the brightness or dimness of light, with higher intensity corresponding to brighter light and lower intensity corresponding to dimmer light. Therefore, intensity is a primary property of visible light as it directly affects how we perceive the brightness of objects and the overall illumination of our surroundings.

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8.

Visible light is absorbed in tiny packets called
- Shine
- Beam
- Photons
- Ray
Correct Answer

A. Photons

Explanation

Visible light is absorbed in tiny packets called photons. Photons are fundamental particles of light that carry energy. When light interacts with matter, it is absorbed by the atoms or molecules, causing the electrons to gain energy and move to higher energy levels. This absorption of photons is responsible for the colors we perceive in the visible spectrum. Each photon has a specific amount of energy corresponding to its wavelength, and the absorption of photons determines the intensity and color of light that we see.

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9.

The study of light is
- Lightning
- Optics
- Lightology
- Network
Correct Answer

A. Optics

Explanation

Optics is the correct answer because it is the branch of physics that deals with the study of light and its behavior. It involves the study of how light interacts with matter, how it is produced and detected, and how it can be manipulated. This field encompasses various phenomena such as reflection, refraction, diffraction, and interference. By studying optics, scientists can understand the properties of light and develop technologies such as lenses, microscopes, telescopes, and lasers.

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10.

An example of optical phenomenon is
- Rainbow
- Light
- Ray
- Sun
Correct Answer

A. Rainbow

Explanation

An example of an optical phenomenon is a rainbow. When sunlight passes through raindrops in the atmosphere, it undergoes refraction, dispersion, and reflection, resulting in the formation of a colorful arc in the sky. This phenomenon occurs due to the bending of light and the separation of its colors, creating a beautiful display of red, orange, yellow, green, blue, indigo, and violet.

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