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HSC Science (Electronics) 12th Board ExamMaharashtra State Board
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Solution - The Resolving Power of a Telescope Depends Upon the - HSC Science (Electronics) 12th Board Exam - Physics

Course
ConceptResolving Power of a Microscope and Telescope

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Question

The resolving power of a telescope depends upon the...............

(a) length of the telescope

(b) focal length of an objective

(c) diameter of an objective

(d) focal length of an eyepiece

Solution

(c) diameter of an objective

R.P of telescope = `1/(d theta)=a/(1.22lambda)`

Thus, it is clear that a telescope with a large diameter of the objective has higher resolving power. Thus, the resolving power of a telescope depends on the diameter of an objective.

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The resolving power of telescope of aperture 100 cm for light of wavelength 5.5 x 10-7 m

(A) 0.149 x 10+7

(B) 1.49 x 10+7

(C) 14.9 x 10+7

(D) 149 x 10+7 

If numerical aperture of a microscope is increased, then its .......................................... .

  1. resolving power decreases
  2. limit of resolution decreases
  3. resolving power remains constant
  4. limit of resolution increases.

The numerical aperture of objective of a microscope is 0.12. The limit of resolution, when light of wavelength 6000A is used to view an object is.......................

  1. 0.25 * 10-7m
  2. 2.5 * 10-7m
  3. 25 * 10-7m
  4. 250 * 10-7m

 

If 'a' is the aperture of telescope and A. is the wavelength of light then resolving power of telescope is .............

a) `lambda/(1.22a)`

b) `(1.22a)/lambda`

c) `(1.22 lambda)/a`

d) `a/(1.22lambda)`

Question PapersVIEW ALL [12]

Solution for question: The Resolving Power of a Telescope Depends Upon the concept: Resolving Power of a Microscope and Telescope. For the courses HSC Science (Electronics), HSC Science (Computer Science), HSC Science (General)