Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

You are asked to design a shaving mirror assuming that a person keeps it 10 cm from his face and views the magnified image of the face at the closest comfortable distance of 25 cm. The radius of curvature of the mirror would then be

Answers (2)

Screenshot_2019-03-12-16-46-29-938_com.android.chrome.png
Posted by

Rahul Singh

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

 From question v = 15 cm,  u = -10 cm

Radius of curvature R = 2f = ?

Mirror formula \frac{1}{v}+\frac{1}{u}=\frac{1}{f}=\frac{1}{15}+\frac{1}{(-10)}=\frac{1}{f}

 f = - 30 cm

\therefore    R= 2(-30) = - 60 cm 

Posted by

Safeer PP

View full answer

Similar Questions

Trending Articles/News

anam-khan

'Why are they dying only in Kota': SC grills Rajasthan over surge in student suicides
anam-khan

JEE Main 2025 paper 2 final answer key out; NTA drops 4 questions, 2 from BPlanning
anam-khan

JEE Main 2025 session 2 answer key out for BArch, BPlanning; response sheet on jeemain.nta.nic.in

Latest Question