Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Is focal length of eye lens fixed?
Asked by saradamahapatra9999 | 15 Mar, 2019, 10:24: AM
Expert Answer
Even though the image distance i.e. the distance between the retina and eyelens cannot be changed a normal human eye can see distant objects as well as the nearby objects clearly. This is possible due to the power of accommodation. An eye can focus the images of the distant objects as well as nearby objects on the retina by changing the focal length of its lens. The focal length of the lens can be changed by action of ciliary muscles. 
Answered by Shiwani Sawant | 15 Mar, 2019, 11:15: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
Arrange the parts in one order from the fornt of the eya
Asked by abhishekuppala598 | 06 Feb, 2022, 09:30: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
What is Iris explain IN detail
Asked by tarsemsingh70273 | 03 Jun, 2020, 06:59: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
give solution of this question
Asked by suhanirao1702 | 30 May, 2020, 10:02: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
what is yellow spot in human eye??
Asked by shivajihake1970 | 07 Apr, 2020, 11:30: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
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
Asked by mdfaizmgr186 | 14 Jan, 2020, 10:21: AM
ANSWERED BY EXPERT
CBSE 10 - Physics
why do things appear unclear when we enter a dark room from outside?
Asked by akashdeepsandhu2106 | 06 Jan, 2020, 06:29: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
Is the distance between lens and retina of the eye always remains the same?    
Asked by Vishalgarg12345678 | 10 Oct, 2019, 05:15: PM
ANSWERED BY EXPERT
CBSE 10 - Physics
Is focal length of eye lens fixed?
Asked by saradamahapatra9999 | 15 Mar, 2019, 10:24: AM
ANSWERED BY EXPERT
CBSE 10 - Physics
What is accomdation of eye
Asked by mirtowfeeq21 | 21 Feb, 2019, 10:09: AM
ANSWERED BY EXPERT
CBSE 10 - Physics
Why 'u' in myopia is considered as infinity
Asked by pranjalbhagat7777 | 12 Feb, 2019, 10:01: AM
ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt