MHT CET · Physics · Ray Optics
The telescopes, for a given wavelength, the objectives with large aperture are used for
- A greater magnification.
- B greater resolution.
- C reducing lens aberration.
- D ease of manufacture.
Answer & Solution
Correct Answer
(B) greater resolution.
Step-by-step Solution
Detailed explanation
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 effective way to increase R.P. of telescope.
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