로그인
Physics for IGCSE & O level - Rays And Waves (Section 1 - No. 50)
Which of the following is used to correct short sight?
Convex lens
Concave lens
Prism
Cylinder lens
설명
A concave lens is used to correct short sight.
댓글 (0)
댓글을 달려면 로그인하세요
광고
자바스크립트가 이 페이지를 올바르게 로드하도록 허용
