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What is the remedy of hypermetropia? - Physics

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प्रश्न

What is the remedy of hypermetropia?

एक पंक्ति में उत्तर
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उत्तर

A hypermetropic eye is corrected by using a convex lens of suitable focal length.

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अध्याय 7: Wave Optics - Evaluation [पृष्ठ १०४]

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सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 12 TN Board
अध्याय 7 Wave Optics
Evaluation | Q 46. | पृष्ठ १०४

संबंधित प्रश्न

Answer the following question in detail.

What is the limitation in increasing the magnifying powers of a simple microscope?


Answer the following question in detail.

What is the limitation in increasing the magnifying powers of a compound microscope?


Answer the following question in detail.

What is the limitation in increasing the magnifying powers of the astronomical telescope?


What are the advantages and disadvantages of using a reflecting telescope?


What is myopia?


What is the remedy of myopia?


What is hypermetropia?


What is astigmatism? What is its remedy?


Discuss about astronomical telescope.


Explain the preliminary adjustments of the spectrometer.


A compound microscope has a magnification of 30. The focal length of eye piece is 5 cm. Assuming the final image to be at least distance of distinct vision, find the magnification produced by the objective.


The near point and the far point for a person are 50 cm and 500 cm, respectively. Calculate the power of the lens the person should wear to read a book held in hand at 25 cm. What maximum distance is clearly visible for the person with this lens on the eye?


When a convex lens of 12.5 cm focal length is used as a magnifying glass, normal eye can see an object clearly at a distance of 25 cm. The magnifying power of the instrument is ____________.


If astronomical telescope of length 1.53 m has magnifying power of magnitude 50, the values of fo and fe are ____________.


A simple microscope is used to see the object first in blue light and then in red light. Due to the change from blue to red light, what is the effect on its magnifying power?


The speed of light in media 'A' and 'B' are 2.0 × 1010 cm/s and 1.5 × 1010 cm/s respectively. A ray of light enters from medium B to A at an incident angle 'θ'. If the ray suffers total internal reflection, then ______.


An object viewed from a near point distance of 25 cm, using a microscopic lens with magnification '6', gives an unresolved image. A resolved image is observed at infinite distance with a total magnification double the earlier using an eyepiece along with the given lens and a tube of length 0.6 m, if the focal length of the eyepiece is equal to ______ cm.


Magnification produced by astronomical telescope for normal adjustment is 10 and length of telescope is 1.1 m. The magnification when the image is formed at least distance of distinct vision (D = 25 cm) is ______.


An observer looks at a distant tree of height 10 m with a telescope of magnifying power of 20. To the observer the tree appears:


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