Function/Importance of ciliary muscles: The ciliary muscles modify the curvature of the eye lens to enable the eye to focus objects at varying distances/help in adjusting the focal length of the eye lens.
Function/Importance of ciliary muscles: The ciliary muscles modify the curvature of the eye lens to enable the eye to focus objects at varying distances/help in adjusting the focal length of the eye lens.
Given below is the list of vegetables are available vegetables in the market. Select from these the two vegetables having homologous structures:- Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(b) Radish and carrot
(b) Radish and carrot
See lessA student takes about 4 mL of distilled water in four test tubes marked P, Q, R and S. He then dissolves in each test tube an equal amount of one salt in one test tube, namely, sodium sulphate in P potassium sulphate in Q, calcium sulphate in R and magnesium sulphate in S. After that he adds an equal amount of soap solution in each test tube. On shaking each of these test tubes well, he observes a good amount of lather (foam) in the test tubes marked.
(a) P and Q
(a) P and Q
See lessWhile preparing soap, in a school laboratory, which one of the following is added with a vegetable oil:
(a) 20% NaOH solution
(a) 20% NaOH solution
See lessWhile preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide. Which one of the following may be the purpose of adding common salt?
(d) To favour the precipitation of the soap
(d) To favour the precipitation of the soap
See lessWrite the importance of ciliary muscles in the human eye. Name the defect of vision that arises due to gradual weakening of the ciliary muscles in old age. What type of lenses are required by the persons suffering from this defect to see the objects clearly?
Function/Importance of ciliary muscles: The ciliary muscles modify the curvature of the eye lens to enable the eye to focus objects at varying distances/help in adjusting the focal length of the eye lens.
Function/Importance of ciliary muscles: The ciliary muscles modify the curvature of the eye lens to enable the eye to focus objects at varying distances/help in adjusting the focal length of the eye lens.
See less