Ophthalmic OpticsCâu 22 / 100
One prism diopter of power displaces an image by how much and at what distance?
a.1 mm at 1 meter
b.1 cm at 1 meter
c.1 m at 1 meter
d.1 inch at 1 foot
Giải thích
One prism diopter deviates a ray of light 1 centimeter at a distance of 1 meter. Prism diopters are the standard unit for specifying and measuring prismatic effect.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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- Snell's law governs which optical phenomenon?
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- Effective power change from vertex distance is most significant for which prescriptions?
- The optical center of a lens is the point where what happens?
Cập nhật gần nhất: · quy trình kiểm tra
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