Question

34. The ability of an instrument to produce
distinctly separate images of two close
objects is called resolving power of an
optical instrument. According to
Rayleigh, two point objects A and B will
be just resolved, when central
maximum of diffraction pattern of B
les on first secondary minimum of
diffraction pattern of A
The minimum distance between two
objects, which can just be seen as
separate by the optical instrument is
called the limit of resolution of the
instrument
OO
Not resolved Just resolved Fully resched
Obviously, smaller the limit of
resolution of the optical instrument,
greater is its resolving power and
vice-versa
Here, resolving power of a microscope
2u sin
1.22%
Now, read the above paragraph and
write the conclusion in your own words.
​

Answer 1

Answer:

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Answer 2

Answer:

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When two objects are very close to each other they may appear as one and we might not see them as separate objects just by magnifying them

To separate two objects which are very close together, optical instrument such as telescope ,microscope,prism,grating etc are employed

The separation of such close object is termed as resolution and the ability of an optical instrument to produce distinctly separate images of two close objects is called its resolving power

Every optical instrument has a limit up to which it can produce distinctly separate images to two objects placed very close to each other

After detailed study of the intensity of diffraction pattern of two very close point objects ,lord Rayleigh suggested that the two objects will be just resolved when central maximum of diffraction pattern of first object lies on first secondary minimum of diffraction pattern of second object

The minimum distance between two point object which can just appear to be as separate by optical instrument is called the limit of resolution of the instrument

we will discuss about the resolving power of optical instrument when we study exclusively about optical instruments

Explanation:

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