The change in the frequency or wavelength of a wave in relation to an observer moving relative to the wave source, often referred to in the context of sound or light waves.
ध्वनिक स्पेक्ट्रम
English Usage: "The acoustic spectrum helps in analyzing the sound quality in recordings."
Hindi Usage: "ध्वनिक स्पेक्ट्रम रिकॉर्डिंग में ध्वनि गुणवत्ता का विश्लेषण करने में मदद करता है।"
A range of electromagnetic wave frequencies, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.