light gathering power meaning in Hindi

Examples

1. It should be noted that only the working f-number correctly assesses the light gathering power of the lens.
2. For a survey of a given area, the field of view is just as important as raw light gathering power.
3. Obviously, a wide field of view would be important . ) Ideally this would increase light gathering power, just as a timed film exposure does.
4. Some items can't be reduced at all, like the Hubble Telescope, as reducing the diameter of a telescope reduces it's light gathering power.
5. It is one of the world's premier observatories for optical, infrared, and submillimeter astronomy, and in 2009 was the largest measured by light gathering power.
6. Largest does not always equate to being the best telescopes, and overall light gathering power of the optical system can be a poor measure of a telescope's performance.
7. The difficulty of procuring disks of glass ( especially of flint glass ) of suitable purity and homogeneity limited the diameter and light gathering power of the lenses found in the achromatic telescope.
8. A telescope's light gathering power and ability to resolve small detail is directly related to the diameter ( or aperture ) of its objective ( the primary lens or mirror that collects and focuses the light ).
9. Confusingly, some older telescopic sights, mainly of German or other European manufacture, have a different classification where the second part of the designation refers to'light gathering power .'In these cases, a 4?1 ( 4?magnification ) sight would be presumed to have a brighter sight picture than a 2.5?0 ( 2.5?magnification ), but the objective lens diameter would not bear any direct relation to picture brightness, as brightness is affected also by the magnification factor.
10. Two small scopes separated by 300 meters have much of the resolution, if not the light gathering power, of a 300 meter diameter telescope, if their images can be properly combined . relates the latest findings using 4 of the 6 mirrors of the Center for High Angular Resolution Astronomy ( CHARA ) interferometric array on Mount Wilson, Calif . Using an " infrared combiner " they combined the images from 4 scopes separated by " nearly 300 yards " to achieve 100 times the sharpness of Hubble images.