MHT CET · Physics · Ray Optics
An astronomical telescope has a large aperture to
- A have high resolution.
- B have low dispersion.
- C increase the span of observation.
- D have large wavelength.
Answer & Solution
Correct Answer
(A) have high resolution.
Step-by-step Solution
Detailed explanation
Though according to mathematical equation R.P. \(\propto \frac{1}{\lambda}\), telescopes being used in sunlight to observe celestial objects, practically there is no control on wavelength incident ( \(\lambda\) ). Hence, using objective lens of large aperture is the effective way to increase R.P. of telescope.
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