In biology laboratories, compound microscopes are essential for viewing magnified images of microscopic cells or organisms. Therefore the correct answer is compound microscope [D]. These microscopes employ multiple lenses to magnify specimens, enabling scientists to study intricate biological structRead more
In biology laboratories, compound microscopes are essential for viewing magnified images of microscopic cells or organisms. Therefore the correct answer is compound microscope [D]. These microscopes employ multiple lenses to magnify specimens, enabling scientists to study intricate biological structures and processes that are otherwise invisible to the naked eye. Compound microscopes utilize a combination of objective and eyepiece lenses to achieve high magnification and resolution. This setup allows researchers to observe cellular organelles, microorganisms, and other minute structures with precision. Option A, a photo camera, is used for capturing images rather than direct observation. A simple microscope (option B) uses a single lens and is limited in magnification compared to a compound microscope. Option D, a telescope, is designed for viewing distant objects and is not suitable for magnifying microscopic specimens. Therefore, the compound microscope (option C) stands out as the primary tool used in biology laboratories for examining and studying microscopic life and cellular structures.
A watchmaker relies on a magnifying lens to see the fine details of a watch's components ; option [B]. This tool is crucial for magnifying small parts like gears, springs, and screws, enabling precise inspection and intricate repair work. Unlike a compound microscope (option C), which is designed foRead more
A watchmaker relies on a magnifying lens to see the fine details of a watch’s components ; option [B]. This tool is crucial for magnifying small parts like gears, springs, and screws, enabling precise inspection and intricate repair work. Unlike a compound microscope (option C), which is designed for viewing microscopic objects with high magnification, a magnifying lens provides sufficient enlargement for detailed examination of watch parts without requiring such extreme magnification. Option A, a photo camera, is used for capturing images rather than for direct visual inspection. Option D, a telescope, is designed for viewing distant objects and would not be suitable for examining close-up details of a watch. Therefore, a magnifying lens (option B) is the most appropriate tool for a watchmaker to accurately work on the delicate mechanisms within a watch.
A telescope is an optical instrument designed to observe distant objects by collecting and focusing light. It typically uses lenses or mirrors (or both) to gather and magnify the incoming light from distant objects, making them appear larger and clearer than they would to the naked eye; option [A].Read more
A telescope is an optical instrument designed to observe distant objects by collecting and focusing light. It typically uses lenses or mirrors (or both) to gather and magnify the incoming light from distant objects, making them appear larger and clearer than they would to the naked eye; option [A]. Telescopes are crucial tools in astronomy, allowing astronomers to study celestial objects such as stars, planets, galaxies, and nebulae in detail. They can also be used for terrestrial observation, such as in surveillance or birdwatching. Telescopes come in various types, including refracting telescopes that use lenses to bend light and reflecting telescopes that use mirrors to reflect and focus light. Option A suggests seeing distant objects, which aligns with the purpose of telescopes. Options B and C are unrelated to the function of telescopes, and option D dismisses any connection to the correct function of a telescope.
Lumen is a unit used to measure luminous flux, which represents the total amount of visible light emitted by a light source per unit of time. The correct answer is [A] luminous flux. Luminous flux quantifies the brightness of light as perceived by the human eye, regardless of the direction in whichRead more
Lumen is a unit used to measure luminous flux, which represents the total amount of visible light emitted by a light source per unit of time. The correct answer is [A] luminous flux. Luminous flux quantifies the brightness of light as perceived by the human eye, regardless of the direction in which the light is emitted. It is crucial in determining the light output of light bulbs, LED lamps, and other light sources, providing a standardized measure of their brightness. Luminous intensity (option B) measures the brightness of a light source in a specific direction and is expressed in candelas (cd). Illuminance (option C) measures the amount of light incident on a surface per unit area and is expressed in lux (lx). Brightness (option D) is a subjective term referring to the perceived intensity of light, which can vary based on individual perception and environmental factors.
Nearsightedness, also known as myopia, is a common vision condition where a person can see objects clearly at close range but has difficulty seeing objects that are farther away. The correct answer is [A] Nearsightedness. This is because the eye focuses light rays in front of the retina rather thanRead more
Nearsightedness, also known as myopia, is a common vision condition where a person can see objects clearly at close range but has difficulty seeing objects that are farther away. The correct answer is [A] Nearsightedness. This is because the eye focuses light rays in front of the retina rather than directly on its surface. Myopia occurs when the eyeball is too long or the cornea has too much curvature. As a result, individuals with myopia may struggle to see objects beyond a certain distance, such as those more than 1 meter away. This condition can be corrected with the use of concave lenses in eyeglasses or contact lenses, which help to diverge the light rays entering the eye, shifting the focal point back onto the retina. Farsightedness (hyperopia) affects near vision, while a disease of the talus pertains to issues with a bone in the ankle and is unrelated to vision problems.
What is used in biology laboratories to see the magnified images of microscopic cells or organisms?
In biology laboratories, compound microscopes are essential for viewing magnified images of microscopic cells or organisms. Therefore the correct answer is compound microscope [D]. These microscopes employ multiple lenses to magnify specimens, enabling scientists to study intricate biological structRead more
In biology laboratories, compound microscopes are essential for viewing magnified images of microscopic cells or organisms. Therefore the correct answer is compound microscope [D]. These microscopes employ multiple lenses to magnify specimens, enabling scientists to study intricate biological structures and processes that are otherwise invisible to the naked eye. Compound microscopes utilize a combination of objective and eyepiece lenses to achieve high magnification and resolution. This setup allows researchers to observe cellular organelles, microorganisms, and other minute structures with precision. Option A, a photo camera, is used for capturing images rather than direct observation. A simple microscope (option B) uses a single lens and is limited in magnification compared to a compound microscope. Option D, a telescope, is designed for viewing distant objects and is not suitable for magnifying microscopic specimens. Therefore, the compound microscope (option C) stands out as the primary tool used in biology laboratories for examining and studying microscopic life and cellular structures.
See lessWhat does a watchmaker use to see the fine parts of a watch?
A watchmaker relies on a magnifying lens to see the fine details of a watch's components ; option [B]. This tool is crucial for magnifying small parts like gears, springs, and screws, enabling precise inspection and intricate repair work. Unlike a compound microscope (option C), which is designed foRead more
A watchmaker relies on a magnifying lens to see the fine details of a watch’s components ; option [B]. This tool is crucial for magnifying small parts like gears, springs, and screws, enabling precise inspection and intricate repair work. Unlike a compound microscope (option C), which is designed for viewing microscopic objects with high magnification, a magnifying lens provides sufficient enlargement for detailed examination of watch parts without requiring such extreme magnification. Option A, a photo camera, is used for capturing images rather than for direct visual inspection. Option D, a telescope, is designed for viewing distant objects and would not be suitable for examining close-up details of a watch. Therefore, a magnifying lens (option B) is the most appropriate tool for a watchmaker to accurately work on the delicate mechanisms within a watch.
See lessWhat is a telescope?
A telescope is an optical instrument designed to observe distant objects by collecting and focusing light. It typically uses lenses or mirrors (or both) to gather and magnify the incoming light from distant objects, making them appear larger and clearer than they would to the naked eye; option [A].Read more
A telescope is an optical instrument designed to observe distant objects by collecting and focusing light. It typically uses lenses or mirrors (or both) to gather and magnify the incoming light from distant objects, making them appear larger and clearer than they would to the naked eye; option [A]. Telescopes are crucial tools in astronomy, allowing astronomers to study celestial objects such as stars, planets, galaxies, and nebulae in detail. They can also be used for terrestrial observation, such as in surveillance or birdwatching. Telescopes come in various types, including refracting telescopes that use lenses to bend light and reflecting telescopes that use mirrors to reflect and focus light. Option A suggests seeing distant objects, which aligns with the purpose of telescopes. Options B and C are unrelated to the function of telescopes, and option D dismisses any connection to the correct function of a telescope.
See lessLumen is the unit of
Lumen is a unit used to measure luminous flux, which represents the total amount of visible light emitted by a light source per unit of time. The correct answer is [A] luminous flux. Luminous flux quantifies the brightness of light as perceived by the human eye, regardless of the direction in whichRead more
Lumen is a unit used to measure luminous flux, which represents the total amount of visible light emitted by a light source per unit of time. The correct answer is [A] luminous flux. Luminous flux quantifies the brightness of light as perceived by the human eye, regardless of the direction in which the light is emitted. It is crucial in determining the light output of light bulbs, LED lamps, and other light sources, providing a standardized measure of their brightness. Luminous intensity (option B) measures the brightness of a light source in a specific direction and is expressed in candelas (cd). Illuminance (option C) measures the amount of light incident on a surface per unit area and is expressed in lux (lx). Brightness (option D) is a subjective term referring to the perceived intensity of light, which can vary based on individual perception and environmental factors.
See lessA person suffering from a distance of less than 1 meter is suffering from
Nearsightedness, also known as myopia, is a common vision condition where a person can see objects clearly at close range but has difficulty seeing objects that are farther away. The correct answer is [A] Nearsightedness. This is because the eye focuses light rays in front of the retina rather thanRead more
Nearsightedness, also known as myopia, is a common vision condition where a person can see objects clearly at close range but has difficulty seeing objects that are farther away. The correct answer is [A] Nearsightedness. This is because the eye focuses light rays in front of the retina rather than directly on its surface. Myopia occurs when the eyeball is too long or the cornea has too much curvature. As a result, individuals with myopia may struggle to see objects beyond a certain distance, such as those more than 1 meter away. This condition can be corrected with the use of concave lenses in eyeglasses or contact lenses, which help to diverge the light rays entering the eye, shifting the focal point back onto the retina. Farsightedness (hyperopia) affects near vision, while a disease of the talus pertains to issues with a bone in the ankle and is unrelated to vision problems.
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