Question
Which one of the following lenses should be used to
correct the defect of astigmatism?Solution
Astigmatism is an optical defect in which visionis blurred due tothe inabilityof the optics of the eye to focus a point object into asharpfocusedimageontheretina.Thismaybe due to an irregular or toric curvature of the corneaorlens.Thetwotypesofastigmatismare regular and irregular. Irregular astigmatism is oftencausedbyacornealscarorscatteringinthe crystalline lens, and cannot be corrected by standard spectacle lenses, but can be corrected by contact lenses.
The Food Authority comprises of 22 members of which women shall make up to:
Poultry industry is one of the largest and fastest growing livestock production systems in the world. The approximate nitrogen content in Poultry manure...
A weather modification technique that improves a cloud's  ability to produce rain or snow is:
Indian Meteorological Department was established in 1875, with headquarter at -
Match the followings
A. Root nodules        I. Azobactor
B. Fungus                 II. Rhizobium
C. Biof...
What is the standard weight of one bale of cotton?
The 15% more trees could be accommodated in the ?
The total water available to plants is known as?
The properties of soil which determine the water movement and root penetration
Which of the following crop is perennial, meaning it can live for multiple years and does not need to be replanted each season in order to produce a ha...
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