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Wave Optics
Question
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The objective of an astronomical telescope has a large aperture to
  • Reduce spherical aberration
  • Increase span of observation
  • Have high resolution
  • Wave low dispertation

Answer

C.

Have high resolution

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Some More Questions From Wave Optics Chapter

Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?