提问定语从句的两个句子

问题描述:

提问定语从句的两个句子
We are living in an age in which more information is available with great ease than ever before.
We are living in an age when many things are done on computer.
为什么这两个句子关系词一个用in which 一个用when?是不是有一题错了啊.

没有什么问题
前者是介词加宾语从句
后者是时间状语从句而已