An achromatic convergent doublet of two lenses in contact has a power of . The convex lens has power . What is the ratio of the dispersive powers of the convergent and divergent lenses?
The condition for achromatism is
Study 40% syllabus and score up to 100% marks in JEE
BTech Admissions 2025 LIVE: JEE Main, MET registration underway; how to apply
JEE Main 2025 Registration: NTA issues advisory for Aadhaar authentication, name mismatch issues
BTech Admissions 2025: JEE Main registration last date, direct link
Create Your Account
To keep connected with us please login with your personal information by phone
Dont't have an account? Register Now