Question Type
Mutliple choice question
Question
The standard measurement of the amplitude of a sound wave is
Answer
No
VU
Yes
db
No
btu
No
ECU
Old Node ID
3529
Answer Json
{answers:[{answer:VU,img:},{answer:db,img:},{answer:btu,img:},{answer:ECU,img:}],correct:2}
Old Lesson reference ID
6754