Question
Which one of the following lenses should be used to
correct the defect of astigmatism?Solution
Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image on the retina. This may be due to an irregular or toric curvature of the cornea or lens. The two types of astigmatism are regular and irregular. Irregular astigmatism is often caused by a corneal scar or scattering in the crystalline lens, and cannot be corrected by standard spectacle lenses, but can be corrected by contact lenses.
What is the required conversion period for an organic farm to be certified?
Castration is the removal of testicles which produce male germ cells. ……………………method of castration is bloodless in which the testicles a...
MSP of Tur (Arhar) for the Kharif marketing season 2022-23 is Rs. ___
Commercial hybrid rice seed production in India is mostly done through
Cell division in which one cell with two set of chromosomes give rise to four cells. The terminology is referred to as
Which breeding technique involves crossing in isolation a number of lines tested for their general combining ability (GCA)?
Soils with high pH are generally deficient in
Match List I with List II According to De Martonne's classification
Joint forest management concept was first implemented at
Isabgol is propagated by
