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प्रश्न
Given below is a diagram depicting a defect of the human eye, study the same and then answer the questions that follow:
(i) Name the defect shown in the diagram.
(ii) What are the two possible that cause this defect?
(iii) Name the type of lens used to correct this defect.
(iv) With the help of a diagram show how the defect shown above is rectified using a suitable lens.
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उत्तर
(i) Myopia
(ii) Two possible reasons are
- Eye ball is lengthened from front to back.
- Lens is too curved.
(iii) Concave lens
(iv)
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संबंधित प्रश्न
Draw labelled diagrams of the following: Ear
Differentiate between members of the following pair with reference to what is asked in bracket.
Semi-circular canal and cochlea (Senses perceived)
Given below is a set of five parts. Rewrite them in correct sequence.
Cochlea, tympanum, auditory canal, ear ossicles, oval window.
Give the main function of the following:
Cochlea
Choose the correct answer :
Organ of corti is found in ___________
Complete the following sentence with appropriate word :
________ is the organ of balance and hearing in the body.
State the Function:
Endolymph
______ is the smallest bone in the human body.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Ear pinna : Auricle :: Inner ear : ______.
Define the following term:
Ear ossicles
