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Explain with reason,how the resolving po...

Explain with reason,how the resolving power of an astronomical telescoe will change when
aperture of the objective lens is halved.

A

reduce spherical aberration

B

have high resolution

C

increase span of observation

D

have low dispersion.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. The refractive indices of the crown glass for blue and red light are 1...

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  2. The total magnification produced by a compound microscope is 20,while ...

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  3. Explain with reason,how the resolving power of an astronomical telesco...

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  4. An initially parallel cylindical beam travels in a medium of refractiv...

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  5. An initially parallel cylindical beam travels in a medium of refractiv...

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  6. An initially parallel cylindical beam travels in a medium of refractiv...

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  7. What is the main condition to produce interference of light?

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  8. In Young's double slit experiment what is the shape of interference fr...

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  9. In a Young's double slit experiment,the intensity at a point,where the...

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  10. A beam of light consisting of two wavelengths, 650 nm and 520 nm, is u...

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  11. Define coherent sources of light, fringe width and interference of lig...

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  12. The question has a paragraph followed by two statements, Statement 1 a...

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  13. If I0 is the intensity of the principal maximum in the singel slit dif...

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  14. Two point white dots are 1 mm apart on a black paper.They are viewed y...

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  15. Wavelength of light used in an opticla instrument are lambda1=4,000 ov...

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  16. This angle of incidence at which relfeted ligth is totally polarised f...

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  17. When an unpolarised light intensity I0 is incident on a polarising she...

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  18. Ray optics is valid,when characteristic dimenstions are

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  19. A person is six feet tall.How tall must a vertical mirror be,if he is ...

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  20. A beam of monochromatic light is refracted from vacuum into a medium o...

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