1. Long-sight defect could be corrected by using __________ lens.

Keep practicing — related questions

• __________ can be corrected by the use of concave lenses.
• Short-sightedness can be corrected by using?
• Short sightedness can be corrected by using
• Convex lenses are used for the correction of
• Short-sightedness can be corrected by
• Short-sightedness can be corrected by
• Short-sightedness can be corrected by using
• short-sightedness can be corrected by using