iPad 10th Generation are having two speakers (providing output) and two without ?

Yes, your are right today i buyed , i noticed instantly, i contact aptronix begumpet store from where i buyed. They told me to contact the apple customer care, upon contacting the customer care, they had run diagnostics on the ipad and told me there is nothing wrong in the device and advised me update the ipad to 17.2 but still could not figured out what was solution was. I am surprise that the people who are sitting in customer support team dont have any idea. dont know what should i do as well. upon searching internet came across this string.

Even i had this same doubt 1st I thought that those speakers are not working then I searched on website nd came to know that one speaker on each side!

With the sole exception of recent models of iPad Pro that have four speakers - all other models of iPad have two speakers.

Recent models of iPad and iPad Air have one speaker at top and bottom - such that what viewed in Landscape orientation (to match the aspect ratio of most video content), you will effectively have a left/right stereo pair.

Older models of iPad have two speakers on the bottom edge of the iPad - one placed either side of the Lightning port. For these models, with the iPad positioned in Landscape orientation, both speakers are to one side of the screen.

For the iPad Pro models with four speakers, the left-right channel relationship remains constant, as the speakers actively follow the orientation of the iPad. As such, speakers to the left of the screen will always be the left audio channel - while the speakers to the right of the screen will always be the right audio channel.

You can verify and compare iPad specifications here:

https://www.apple.com/ipad/compare/?modelList=ipad-pro-12-9-6th-gen,ipad-10th-gen,ipad-9th-gen

Other than decorative symmetry, behind other grilles are other hardware - such as microphones and barometric sensor etc.

Some sound from the adjacent speaker driver may seemingly “leak” from the other grilles.