The distance between successive peaks of a wave, often used in the context of light or sound waves.

तरंग दैर्ध्य

English Usage: The effective wave-length of the laser allows it to cut through thick materials easily.

Hindi Usage: लेज़र का प्रभावी तरंग दैर्ध्य मोटे सामग्रियों को आसानी से काटने की अनुमति देता है.