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.
Identify the pigment that gives blood its colour.
Which Union Ministry is associated with the Citizenship (Amendment) Act, 2019?
Which state's Shahi litchi has been awarded the Geographical Indication (GI) tag?
Which one of the following is not a correct IP address?
Match List – 1 and List – 2 and select the correct answer by using the code given below the list.
Where will India and the USA be co-hosting the Global Entrepreneurship Summit in November 2017?
Where was the 7th Indian Ocean Conference held?
Which of the following is/are one of the United Nations Sustainable Development Goals?
(A) Zero Hunger
(B) Climate Action
(C...
The first Amendment to the constitution of India was made on______.
Rivers such as the Ganga and Son flowed through ______, a mahajanapada in ancient India.
