Distance of sound detector from walls

Answer: Option B

Minimum distance h mirror from the floor

Answer: Option B

Different Converging Lens Ray Diagram questions

Drawing ray diagrams for converging lens come in many forms. But the basic concepts needed are the 3 rays (which have rules to follow) to locate the image.

The following ray diagrams for the 4 scenarios must be learned well, together with the respective image characteristics and applications.

Example A

Example B

Example C

Example D

Example E

Example F

Example G

Example H

Example I

Example J