Question

Fill in the blank.

On stretching a slinky, the regions where the coils become closer are called ________ and the regions where coils are further apart are called ________ :

• A. rarefaction, compression
• B. compression, rarefaction
• C. compression, trough
• D. raufaction, through

Answer 1

The correct option is B compression, rarefaction

Compression, Rarefaction

Compressionis the area of higher density or larger number of turns per unit length are present in these regions compared to other regions.
The portions which are pulled apart have less turns per unit length than the normal spring are called rarefactions.

Option B is correct.