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MHT CET20249 May 2024Evening ShiftPhysicsRay OpticsActual

An astronomical telescope has a large aperture to

Options

  1. Ahave high resolution.
  2. Bhave low dispersion.
  3. Cincrease the span of observation.
  4. Dhave large wavelength.

Correct answer

A. have high resolution.

Step-by-step solution

Though according to mathematical equation R.P. 1 , telescopes being used in sunlight to observe celestial objects, practically there is no control on wavelength incident ( ). Hence, using objective lens of large aperture is the effective way to increase R.P. of telescope.

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