Which of these objects would be most likely to create this sound wave?

A) an electric guitar

B) a fire alarm

C) a ticking clock

D) a thunder storm

I already got this wrong and I am posting for anyone who doesn't know. The answer is... C) a ticking clock? Don't know why that's the answer but it is. I just took the test.

The image is missing, so i have attached it.

Correct answer is Option C - Ticking clock

Explanation:

Sound waves are formed when a vibrating object makes the encompassing medium to vibrate. Where the medium is the material in which the wave goes through. Sound waves comprise of zones of high and low weight called compressions and rarefactions, separately.

Now, in this question, the image given is one of compression and rarefactions. Looking at the options given, the correct option that produces such a wave is Ticking clock because Sound energy travels through air in waves and when an alarm clock rings, nearby air molecules vibrate. The air molecules jiggle about and cause neighbouring molecules to vibrate as well, thereby starting a wave of energy that travels out from the clock. The wave of sound travels in a pattern of compressions (where the air molecules are squeezed together) and rarefactions (where the air molecules are stretched apart).

i think its

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.