Связь между длиной волны λ и волновым числом k:<img src="/close/store/examRes/%7B21118BC8-69F8-4578-9A9A-88C05DA9CE80%7D/Eqn009.gif" /><img src="/close/store/examRes/%7B21118BC8-69F8-4578-9A9A-88C05DA9CE80%7D/WaveNumber_lambda.gif" /><img src="/close/store/examRes/%7B21118BC8-69F8-4578-9A9A-88C05DA9CE80%7D/Eqn007.gif" /><img src="/close/store/examRes/%7B21118BC8-69F8-4578-9A9A-88C05DA9CE80%7D/Eqn008.gif" /> <img src="/img/fb/2a8f0d950d5ec4fccb6000f918.gif" />, <img src="/img/a0/b97c2dc71e37d7d8892dcfcd25.gif" />, <img src="/img/af/b00c6f4ea8407bb37ae5fad42f.gif" />, <img src="/img/a1/f47079b82fd28a96ae1a55b711.gif" />