CBSE Class 10: Human Eye Videos | Natural optical device: Human Eye

• what is cornea
• Amar watching the birds sitting on top of a tree, at that time an ant bite his hand, he turned his head down to see his hand . Which part of eye helps him to adjust to see the top of a tree and also see his hand very nearly almost at same time?
• the violet light have smaller wave length then blue light so why the sky colour is not violet?
• Arrange the parts in one order from the fornt of the eya
• What is Iris explain IN detail
• give solution of this question
  
• what is yellow spot in human eye??
• Amit suffering from myopia is not able to see distantly the objects placed beyond five from his eyes. List possible reason due to which this defect of vision may have a rising. With the help of a diagram explain;   (a) why the student is unable to see the           objects placed beyond 5 metre.  (b) type of corrective lens used to restore        proper vision and how is defect is                corrected by the use of this lens.  (C) if in this case,  the numerical value of the focal length of the corrective lens is 5 metre find the power of the lens as per the new cartesian sign convention
• why do things appear unclear when we enter a dark room from outside?
• Is the distance between lens and retina of the eye always remains the same?    

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