student-name

Yash Gor asked in Science

Plz give answer

Thank You
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Himanshu Thakkar answered this

Nsje suskd bzjkw ba was busy chief CIC
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Deepika Sharma answered this

Dear Student

a) 
i) Myopia or short-sightedness is the inability of an eye in viewing long distance objects. The image in this case falls before the retina.
For every myopic eye, there exists a far point beyond which clear image cannot be seen.

ii) Short-sightedness is caused due to  (i) excessive curvature in cornea.  (ii) elongation of eyeball.

iii) 


b) Rainbow forms when sunlight hits the water droplets suspended in the atmosphere and undergoes total internal reflection. When the sunlight comes out of the drop it disperses, where the drop acts like a small prism. This dispersion or breaking up of light into several colors is what forms rainbow.

Regards