Magnifying power of a simple microscope:
Correct answer: B. Increases with a decrease in focal length
- A. Increases with an increase in focal length:
- B. Increases with a decrease in focal length
- C. No effect with decrease or increase in focal length:
- D. Least distance of distinct vision:
Explanation
Explanation: The magnifying power of a simple microscope increases with a decrease in focal length. It is inversely proportional to the focal length of the lens.The magnifying power (M) of a simple microscope is indeed inversely proportional to the focal length (f) of the lens. The relationship between magnifying power, focal length, and the least distance of distinct vision (D) is given by the formula:M=1+D/F
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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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