The correct option is
D will be more crowded near the sharp edges of a conductor.
Equipotential surfaces:
- The equipotentials are evenly spaced and parallel between the only plates. So, Equipotentials will not always be equally spaced.
- Equipotential surfaces are closer in regions with high electric fields than in regions with low electric fields.
- Charge density is higher at a conductor's sharp edges.
- As a result, the electric field is stronger.
- As a result, equipotential surfaces are more crowded.
- It is clear from the diagram that equipotential surfaces are not at equidistance, hence option (A) is incorrect.
![](https://uc2c8c18388330ba0501fe4f03bb.previews.dropboxusercontent.com/p/thumb/ABn2JChvCxy6ccvkMzQACj8Z-SIG-DMByPqYIxUSf4KUPssMx-cAW2c9NYnSOIcUnepmhApuQM4fcHMAdJNZe7pmuWt1_XP-kRgdRqYASLe0mhx8uDNz0AYM8Q9nIcfs7sRCexn99b1TjnypK3dN9riq6e06ypqlU_p2MmB4_2gNHx00_ImCrn5VezyFFAsqLHW-_VbNK-t7K3No0VtiUahsiRkrl68zcWZhq4EDAsmPhy2hN2gWBY6uPcgUSZtt3WxK9Swh53xuZLhrjIl4oap-2Wi-SV1u0sT5NFCOZjJ_uPJfNhVxzwjpuvSf9cQJCIcCVFDHkUN4k42DtFIg1W_ihlOZDa4yyGvg82Cr5jwCrbuMlgWcQi25m4lS2UAEP1s/p.jpeg)
Hence, options (B), (C), (D) are correct.