There are seismograph stationed all over the world to pick up sesmic waves. Can a seosmometer detect a p-wave at 123° from the focus of an earthquake.if yes or no give your reason?

Yes, a seismometer can detect a P-wave at 123° from the focus of an earthquake. P-waves are the fastest seismic waves and can travel in all directions from the earthquake's focus. The seismometer is designed to pick up vibrations caused by the P-wave, regardless of the direction in which it is traveling.