Questions
A person can see clearly objects only when they lie between 50 cm and 400 cm from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be
detailed solution
Correct option is B
Here, u=400 cm=4 m,v=∞,f=? Using lens formula, 1v-1u=1f or, 1∞-14=1f or, f=-4 mLens should be concave. Power of lens =1f=1-4=-0.25DTalk to our academic expert!
Similar Questions
Telescopes have larger diameter of objective
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
