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Assume that light of wavelength 6000Å is...

Assume that light of wavelength `6000Å` is coming from a star. What is the limit of resolution of a telescope whose objective has a diameter of 100 inch?

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A 100 inch telescope implies that `2a = 100 "inch" = 254 cm.` Thus if,
`lambda~~6000Å=6xx10^(-5)cm`
then
`Delta theta~~(0.61xx6xx10^(-5))/(127)~~2.9xx10^(-7)" radians"`
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NCERT BANGLISH-WAVE OPTICS-EXERCISES
  1. Assume that light of wavelength 6000Å is coming from a star. What is t...

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  2. Monochromatic light of wavelength 589 nm is incident from air on a wat...

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  3. What is the shape of the wavefront in each of the following cases: (...

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  4. (a) The refractive index of glass is 1.5. What is the speed of light i...

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  5. In a Young’s double-slit experiment, the slits are separated by 0.28 m...

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  6. In Young's double-slit experiment using monochromatic light of wavelen...

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

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  8. In a double-slit experiment the angular width of a fringe is found to ...

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  9. What is the Brewster angle for air to glass transition? (Refractive in...

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  10. Light of wavelength 5000 Å falls on a plane reflecting surface. What a...

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  11. Estimate the distance for which ray optics is good approximation for a...

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  12. The 6563Å Halpha line emitted by hydrogen in a star is found to be red...

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  13. Explain how Corpuscular theory predicts the speed of light in a medium...

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  14. You have learnt in the text how Huygens’ principle leads to the laws o...

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  15. Let us list some of the factors, which could possibly influence the sp...

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  16. For sound waves, the Doppler formula for frequency shift differs sligh...

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  17. In double-slit experiment using light of wavelength 600 nm, the angula...

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  18. Answer the following questions: (a) In a single slit diffraction exp...

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  19. Answer the following questions: (b) In what way is diffraction from ...

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  20. Answer the following questions: (c) When a tiny circular obstacle is...

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  21. Answer the following questions: (d) Two students are separated by a ...

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