Polaroids can be used:
Correct answer: D. All of them
- A. To control head light glare in night driving
- B. To determine the concentration of optically active substance
- C. In curtain less window to adjust the amount of light
- D. All of them
Explanation
Polaroids can be used in various scenarios, including controlling headlight glare in night driving, determining the concentration of optically active substances, and adjusting light in curtain-less windows. Therefore, the correct answer is 'All of them.' The other options are incorrect because they only mention specific uses of polaroids, whereas the correct answer encompasses all possible uses.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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