One degree Angstrom is equal to
Correct answer: B. 10-8 cm
- A. 10-10 cm
- B. 10-8 cm
- C. 10 m
- D. 1010 mm
Explanation
The correct answer is 10-8 cm because an Angstrom is a unit of length used to express very small distances, typically at the atomic scale. It is equivalent to 10-10 meters or 10-8 centimeters. The other options are incorrect because they do not accurately represent this conversion. 10 m and 1010 mm are far too large, while 10-10 cm is incorrect by two orders of magnitude.
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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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