If n represents the order of a half period zone, the area of this zone is approximately proportional to nm where m is equal to :
Correct answer: C. One
- A. Zero
- B. Half
- C. One
- D. Two
Explanation
The area of a half period zone is approximately proportional to nm, where m is equal to one. This means that the area does not change with the order of the zone, making it independent of n. Therefore, the correct answer is Option C. Options A, B, and D are incorrect because the area is not affected by the order of the half period zone, so m cannot be zero, half, or two.
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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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