CoachA traveling perturbation — a sound’s compression pattern, the ripple on a pond, a radio pulse — is a wave. The medium, when there is one, stays put: each patch of water bobs in place while the ripple crosses the pond. The geometry of waves — wavelength, interference, diffraction — is taken up in a later chapter; this chapter only needs their speeds.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Physics · পরিভাষা