Question Type
Mutliple choice question
Question
An f-stop is
Answer
Yes
the focal length\/diameter of iris
No
the length of the lens
No
the diameter of the iris
No
the amount of light let in to the camera lens
Old Node ID
3278
Answer Json
{answers:[{answer:the focal length\/diameter of iris,img:},{answer:the length of the lens,img:},{answer:the diameter of the iris,img:},{answer:the amount of light let in to the camera lens,img:}],correct:1}
Old Lesson reference ID
1223