You want to create a device that sends signals to your dog to stop barking. Which type of electromagnetic wave would be most useful to investigate?

Gamma rays, because they are powerful and safe.

Microwaves, because they are high energy and powerful.

Radio waves, because they are low energy and safe.

X–rays, because they are low energy and can pass through things.

Question

You want to create a device that sends signals to your dog to stop barking. Which type of electromagnetic wave would be most useful to investigate?

Gamma rays, because they are powerful and safe.

Microwaves, because they are high energy and powerful.

Radio waves, because they are low energy and safe.

X–rays, because they are low energy and can pass through things.

anonymous · Answer

I think that the answer to this one could be either the third or last one. But, I really think that the answer to this one is C.
@Ashleyisakitty @zepdrix @Zale101 @zanza90 @PixieDust1 @DangerousJesse @Miracrown @pgpilot326 @Lukecrayonz

anonymous · Answer

@aum @anqie37 @anguish @briannaearls12 @Bossimbacon @bloody049 @buffalo12412 @Compassionate @camerondoherty @ConDawg @clamin @Cregannn @Calyssa00 @dan815 @Eytan99 @gold_grace123 @Gokuporter @HelpBlahBlahBlah @happycam31

anonymous · Answer

I really really need help and know if my answer is correct. PLZ SOMEONE!

helpblahblahblah · Answer

i think c too

anonymous · Answer

ok so what does @clamin think?

anonymous · Answer

does anyone have opposing answers?

anonymous · Answer

so why do x-ray techs have to be in another room when x-raying someone or something?  what do we use microwaves for?  gamma rays are deadly (very high energy).

anonymous · Answer

what are we exposed to every day that are man-made?