CBSE Class 10 Answered
A person is able to see objects clearly only when placed at distance between 50 cm and 300 cm from his eye.
(a) What kind of defect of vision is he suffering from?
(b) What kind of lens will be required to increase his range of vision from 25 cm to infinity? Explain briefly
Asked by Topperlearning User | 21 Jul, 2017, 03:16: PM
Expert Answer
(a) The person is suffering from both myopia and hypermetropia.
(b) He has to use bi-focal lens to increase his range of vision from 25 cm to infinity. The upper portion (concave lens) facilitates distant vision and the lower portion (convex lens) facilitates near vision.
Answered by | 21 Jul, 2017, 05:16: PM
Application Videos
-
Correction of Hypermetropia
This video explains the calculation of power of convex lens for correction ... -
Correction of Myopia
This video explains the concept of power of accommodation and calculation o... -
Defects of vision and its causes
This video describes the causes, types of lens to be used for the correctio... -
Defects of Vision and its Correction
This video explains how to identify the defect of vision and also explai...
-
Myopia - Causes and Corrective Lens
This video explains how to solve numericals based on the concept of defe...
CBSE 10 - Physics
Asked by udaykuna006 | 16 Jul, 2023, 07:20: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by bhu.joshi54 | 08 Aug, 2022, 07:36: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by sunnysuketu | 26 May, 2022, 08:33: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by sunnysuketu | 26 May, 2022, 08:33: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by nazirwagay1 | 17 Apr, 2020, 08:17: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by savitaagarwal668 | 04 Mar, 2020, 11:28: PM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by bhardwajshan2 | 07 May, 2019, 10:16: AM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by bindulekshmi65 | 31 Jan, 2019, 07:13: AM
ANSWERED BY EXPERTCBSE 10 - Physics
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT
