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Question 1:

Which optical device is used to correct vision problems caused by refractive errors?

A) Microscope
B) Telescope
C) Eyeglasses
D) Camera

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Explanation: The correct answer is C) Eyeglasses. Eyeglasses are optical devices used to correct vision problems caused by refractive errors such as nearsightedness (myopia) or farsightedness (hyperopia). They work by modifying the path of light entering the eyes, helping to focus the light properly onto the retina for clearer vision.

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Question 2:

Which optical instrument is used to examine the internal structures of the eye?

A) Microscope
B) Telescope
C) Ophthalmoscope
D) Endoscope

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Explanation: The correct answer is C) Ophthalmoscope. An ophthalmoscope is an optical instrument used by eye care professionals to examine the internal structures of the eye, including the retina, optic nerve, and blood vessels. It allows for the detection of eye diseases and abnormalities.

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Question 3:

Which optical device uses the phenomenon of interference to produce colorful patterns?

A) Spectroscope
B) Hologram
C) Kaleidoscope
D) Prism

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Explanation: The correct answer is B) Hologram. A hologram is an optical device that uses the phenomenon of interference to produce colorful patterns and three-dimensional images. It captures and reproduces the light wavefronts scattered by an object, creating an optical illusion of depth and realism.

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Question 4:

Which optical device is used to measure the intensity and properties of light?

A) Microscope
B) Telescope
C) Spectrophotometer
D) Laser

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Explanation: The correct answer is C) Spectrophotometer. A spectrophotometer is an optical device used to measure the intensity and properties of light. It can analyze the wavelength distribution of light and determine the absorption, transmission, or reflection characteristics of substances, making it useful in fields such as chemistry, biology, and materials science.

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Question 5:

Which optical instrument is used to magnify distant objects and study celestial bodies?

A) Microscope
B) Telescope
C) Camera
D) Spectroscope

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Explanation: The correct answer is B) Telescope. A telescope is an optical instrument used to magnify distant objects and study celestial bodies. It gathers and focuses light from distant sources, allowing for detailed observations of stars, planets, galaxies, and other astronomical objects.