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In a Std. X class, out of 40 students, ...

In a Std. X class, out of 40 students, 10 students use spectacles, 2 students have positive power and 8 students have negative power and 8 students have negative power of lenses in their spectacles .
What defect of eyesight do must of the students suffer from ?

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Most of the students suffer from myopia.
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-LENSES-Answer the following questions :
  1. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  2. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  3. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  4. In a Std. X class, out of 40 students, 10 students use spectacles, 2 ...

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  5. What is hypermetropia or farsightedness ? What are the possible reason...

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  6. What is the sign of the power of the lens used to correct hypermetropi...

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  7. Given below is a diagram showing defect of human eye . Give two ...

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  8. Given below is a diagram showing defect of human eye . Give two...

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  9. Given below is a diagram showing defect of human eye . Name the ...

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  10. Given below is a diagram showing defect of human eye . Draw a l...

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  11. Observe the following figures and complete the table .

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  12. What is presbyopia ? State the reason for this defect . How is presbyo...

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  13. What is a bifocal lens ?

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  14. Anil cannot see the blackboard writing clearly, but he can see nearby ...

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  15. Anil cannot see the blackboard writing clearly, but he can see nearby ...

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  16. Anil’s uncle cannot see nearby objects clearly, but he can see...

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  17. Anil’s uncle cannot see nearby objects clearly, but he can see...

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  18. When are bifocal lenses used in spectacles?

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  19. Aniket from Std. X uses spectacles. The power of the lenses in his ...

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  20. Aniket from Std. X uses spectacles. The power of the lenses in his ...

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