![Old age is a wonderful source of ironies,
Old age is a wonderful source of ironies,](https://content2.mcqstudy.com/ss/got-49-00:08:44.090.jpeg)
Old age is a wonderful SOURCE of ironies,
Game of Thrones Season 4, Episode 9
![...caused by relative motion between
the source of the wave and the observer.
...caused by relative motion between
the source of the wave and the observer.](https://content2.mcqstudy.com/ss/tbbt-1-6-00:07:33.743.jpeg)
...caused by relative motion between
the SOURCE of the wave and the observer.
The Big Bang Theory Season 1, Episode 6
![as a source of information
as a source of information](https://content2.mcqstudy.com/ss/tbbt-11-16-00:07:23.501.jpeg)
as a SOURCE of information
The Big Bang Theory Season 11, Episode 16
![Not only do I have a deep-cycle
marine battery power source
Not only do I have a deep-cycle
marine battery power source](https://content2.mcqstudy.com/ss/tbbt-5-15-00:13:42.587.jpeg)
Not only do I have a deep-cycle
marine battery power SOURCE
The Big Bang Theory Season 5, Episode 15
![But not so deep as to introduce
a new source of friction. But not so deep as to introduce
a new source of friction.](https://content2.mcqstudy.com/ss/tbbt-2-5-00:13:12.540.jpeg)
But not so deep as to introduce
a new SOURCE of friction."
The Big Bang Theory Season 2, Episode 5