What are the key differences between a B1/B2 visa and a B2 visa, and how do these distinctions impact the purposes and activities allowed for visitors under each visa category?

A B1/B2 visa allows for both business (B1) and tourism (B2) purposes, while a B2 visa is solely for tourism. The distinction impacts the activities allowed, with B1/B2 visa holders able to engage in business-related activities in addition to tourism, while B2 visa holders are limited to tourism activities only.