光速是多少秒米? 光速是多少?
\u5149\u901f\u6bcf\u79d2\u591a\u5c11\u7c73\u6211\u4eec\u90fd\u77e5\u9053\uff0c\u771f\u7a7a\u4e2d\u7684\u5149\u901f\u662f\u76ee\u524d\u6240\u53d1\u73b0\u7684\u81ea\u7136\u754c\u7269\u4f53\u8fd0\u52a8\u7684\u6700\u5927\u901f\u5ea6\u4e86\u3002\u5728\u771f\u7a7a\u4e2d\uff0c\u5149\u7684\u4f20\u64ad\u901f\u5ea6\u7ea6\u4e3a\u6bcf\u79d2\u4e09\u5341\u4e07\u5343\u7c73 \uff0c\u5982\u679c\u4f60\u80fd\u591f\u8fbe\u5230\u5149\u901f\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\u4e8b\u60c5\u5462\uff1f
\u5149\u901f\u662f c0=299792458m/s\uff0c\u6216\u8005c0=299792.458km/s \uff08\u4e00\u822c\u53d6300000km/s\uff09\u3002
1\u3001\u5149\u901f\u662f\u6307\u5149\u6ce2\u6216\u7535\u78c1\u6ce2\u5728\u771f\u7a7a\u6216\u4ecb\u8d28\u4e2d\u7684\u4f20\u64ad\u901f\u5ea6\u3002\u771f\u7a7a\u4e2d\u7684\u5149\u901f\u662f\u76ee\u524d\u6240\u53d1\u73b0\u7684\u81ea\u7136\u754c\u7269\u4f53\u8fd0\u52a8\u7684\u6700\u5927\u901f\u5ea6\u3002
2\u3001\u771f\u7a7a\u4e2d\u7684\u5149\u901f\u7b49\u4e8e299\uff0c792\uff0c458\u7c73/\u79d2\uff081\uff0c079\uff0c252\uff0c848.88\u5343\u7c73/\u5c0f\u65f6\uff09\u3002[2]\u8fd9\u4e2a\u901f\u5ea6\u5e76\u4e0d\u662f\u4e00\u4e2a\u6d4b\u91cf\u503c\uff0c\u800c\u662f\u4e00\u4e2a\u5b9a\u4e49\u3002\u5b83\u7684\u8ba1\u7b97\u503c\u4e3a\uff08299792500\u00b1100\uff09\u7c73/\u79d2\u3002
\u6269\u5c55\u8d44\u6599\uff1a
1\u3001\u771f\u7a7a\u4e2d\u7684\u5149\u901f\u662f\u4e00\u4e2a\u7269\u7406\u5e38\u6570\uff08\u7b26\u53f7\u662fc\uff09\uff0c\u7b49\u4e8e299\uff0c792\uff0c458m/s\u3002\u6ce8\uff1a\u5149\u901f\u7684\u65b9\u5411\u4e0d\u6052\u5b9a\u3002\u5982\u679c\u5728\u5149\u8fd0\u884c\u65f6\u65bd\u52a0\u529b\uff0c\u90a3\u4e48\u5149\u7684\u65b9\u5411\u8fdb\u800c\u901f\u5ea6\u77e2\u91cf\u4f1a\u4ea7\u751f\u4e00\u5b9a\u7684\u6539\u53d8\u3002
2\u3001\u5149\u901f\u8fd8\u5b9a\u4e49\u7740\u6bd4\u957f\u5ea6\u66f4\u52a0\u57fa\u672c\u7684\u4e1c\u897f\u3002\u963f\u5c14\u4f2f\u7279\u00b7\u7231\u56e0\u65af\u5766\u7684\u5de5\u4f5c\u8868\u660e\u4e86\u5149\u901f\u7684\u771f\u6b63\u91cd\u8981\u6027\u3002\u7531\u4e8e\u4ed6\u7684\u529f\u52b3\uff0c\u6211\u4eec\u77e5\u9053\uff0c\u5149\u901f\u4e0d\u4ec5\u4ec5\u662f\u5149\u5b50\u5728\u771f\u7a7a\u4e2d\u8fd0\u52a8\u7684\u901f\u5ea6\uff0c\u8fd8\u662f\u8fde\u63a5\u65f6\u95f4\u4e0e\u7a7a\u95f4\u7684\u57fa\u672c\u5e38\u6570\u3002
3\u3001\u771f\u7a7a\u4e2d\u7684\u5149\u901f\u662f\u4e00\u4e2a\u7269\u7406\u5e38\u91cf\uff0c\u56fd\u9645\u516c\u8ba4\u503c\u4e3ac=299792458m/s\u300217\u4e16\u7eaa\u524d\u4eba\u4eec\u4ee5\u4e3a\u5149\u901f\u4e3a\u65e0\u9650\u5927\uff0c\u610f\u5927\u5229\u7269\u7406\u5b66\u5bb6G.\u4f3d\u5229\u7565\u66fe\u5bf9\u6b64\u63d0\u51fa\u6000\u7591\uff0c\u5e76\u8bd5\u56fe\u901a\u8fc7\u5b9e\u9a8c\u6765\u68c0\u9a8c\u4ed6\u8bbe\u60f3\uff0c\u5728\u8ddd\u79bb\u5f88\u8fdc\u7684\u4e24\u4e2a\u5730\u65b9\uff0c\u4e24\u4eba\u4e92\u76f8\u7528\u706f\u5149\u4f20\u9012\u4fe1\u53f7\uff0c\u6700\u7ec8\u6ca1\u80fd\u6210\u529f\u3002
4\u30011676\u5e74\uff0c\u4e39\u9ea6\u5929\u6587\u5b66\u5bb6O.C.\u7f57\u9ed8\u5229\u7528\u6728\u661f\u536b\u661f\u7684\u661f\u8680\u65f6\u95f4\u53d8\u5316\u8bc1\u5b9e\u5149\u662f\u4ee5\u6709\u9650\u901f\u5ea6\u4f20\u64ad\u7684\u30021727\u5e74\uff0c\u82f1\u56fd\u5929\u6587\u5b66\u5bb6J.\u5e03\u62c9\u5f97\u96f7\u5229\u7528\u6052\u661f\u5149\u884c\u5dee\u73b0\u8c61\u4f30\u7b97\u51fa\u5149\u901f\u503c\u4e3ac=303000\u5343\u7c73/\u79d2\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1_\u5149\u901f
光速计算值:c=
(299792.50±0.10)km/s (一般取300000000m/s）
30万
绛旓細鍏夌殑閫熷害鏄299792458绫/绉掋傚厜閫熼熷害锛299792458绫/绉拁3脳10~8绫/绉掋1鍏夐燂紙c锛=299792.458鍗冪背/绉掞紙km/s锛夈鍏夐熸槸鎸囧厜娉㈡垨鐢电娉㈠湪鐪熺┖鎴栦粙璐ㄤ腑鐨勪紶鎾熷害銆傜湡绌轰腑鐨勫厜閫熸槸鐩墠鎵鍙戠幇鐨勮嚜鐒剁晫鐗╀綋杩愬姩鐨勬渶澶ч熷害銆傚畠涓庤娴嬭呯浉瀵逛簬鍏夋簮鐨勮繍鍔ㄩ熷害鏃犲叧锛屽嵆鐩稿浜庡厜婧愰潤姝㈠拰杩愬姩鐨勬儻鎬х郴涓祴鍒扮殑...
绛旓細1鍏夐=299792.458鍗冪背/绉(km/绉)1鍏夐=299792.458鍗冪背/绉(km/绉)銆鍏夐熸槸瀹囧畽涓墍鏈夌墿璐ㄨ繍鍔ㄥ拰淇℃伅浼犻掔殑涓婇檺锛屼篃鏄墍鏈夋棤璐ㄩ噺绮掑瓙鍜岀浉搴旂殑鍦烘定钀藉湪鐪熺┖涓繍鍔ㄧ殑閫熷害銆傚厜閫熶笉鏄竴涓害閲忥紝鑰屾槸涓涓畾涔夈傚畠鐨勮绠楀兼槸(299792500卤100)绫/绉掋傜背鏄浗闄呭崟浣嶅埗鐨勫熀鏈崟浣嶏紝鑷1983骞10鏈21鏃ヨ捣锛屽畠琚...
绛旓細鍏夐熸槸瀹囧畽涓墍鏈夌墿璐ㄨ繍鍔ㄥ拰淇℃伅浼犻掔殑涓婇檺锛屼篃鏄墍鏈夋棤璐ㄩ噺绮掑瓙鍜岀浉搴旂殑鍦烘定钀藉湪鐪熺┖涓繍鍔ㄧ殑閫熷害銆傚厜閫熶笉鏄竴涓害閲忥紝鑰屾槸涓涓畾涔夈傚畠鐨勮绠楀兼槸锛299792500卤100锛夌背锛忕銆傜背鏄浗闄呭崟浣嶅埗鐨勫熀鏈崟浣嶏紝鑷1983骞10鏈21鏃ヨ捣锛屽畠琚畾涔変负鍏夊湪1/299792458绉掑唴浼犳挱鐨勮窛绂汇備娇鐢ㄨ嫳鍒跺崟浣嶏紝鍏夐熺害涓186282....
绛旓細鐪熺┖涓殑鍏夐熺瓑浜1299792.458鍏噷姣忕銆傚厜閫熷苟涓嶆槸涓涓祴閲忓硷紝鑰屾槸涓涓畾涔夈傚畠鐨勮绠楀间负锛299792500卤100锛夌背/绉掋傚浗闄呭崟浣嶅埗鐨勫熀鏈崟浣嶇背浜1983骞10鏈21鏃ヨ捣琚畾涔変负鍏夊湪1/299锛792锛458绉掑唴浼犳挱鐨勮窛绂汇備娇鐢ㄨ嫳鍒跺崟浣嶏紝鍏夐熺害涓186锛282.397鑻遍噷/绉掞紝鎴栬670锛616锛629.384鑻遍噷/灏忔椂锛岀害涓1鑻卞昂...
绛旓細鐪熺┖涓厜閫烠=299792458m/s锛堜竴鑸彇300000000m/s锛鍏夐熸槸鎸囧厜娉㈡垨鐢电娉㈠湪鐪熺┖鎴栦粙璐ㄤ腑鐨勪紶鎾熷害銆傜湡绌轰腑鐨勫厜閫熸槸鐩墠鎵鍙戠幇鐨勮嚜鐒剁晫鐗╀綋杩愬姩鐨勬渶澶ч熷害銆傚畠涓庤娴嬭呯浉瀵逛簬鍏夋簮鐨勮繍鍔ㄩ熷害鏃犲叧锛屽嵆鐩稿浜庡厜婧愰潤姝㈠拰杩愬姩鐨勬儻鎬х郴涓祴鍒扮殑鍏夐熸槸鐩稿悓鐨勩傜墿浣撶殑璐ㄩ噺杩樿窡瀹冭繍鍔ㄧ殑閫熷害鏈夊叧锛堝墠鎻愭槸鐗╀綋鐨勯熷害...
绛旓細鍏夐熸槸 c0=299792458m/s锛屾垨鑰卌0=299792.458km/s 锛堜竴鑸彇300000km/s锛夈傜湡绌轰腑鐨鍏夐熺瓑浜299锛792锛458绫/绉掞紙1锛079锛252锛848.88鍗冪背/灏忔椂锛夈傝繖涓熷害骞朵笉鏄竴涓祴閲忓硷紝鑰屾槸涓涓畾涔夈傚畠鐨勮绠楀间负锛299792500卤100锛夌背/绉掋1銆佸厜閫燂細鎸囧厜鎴栫數纾佹尝鍦ㄧ湡绌烘垨浠嬭川涓殑浼犳挱閫熷害銆2銆佺湡绌轰腑...
绛旓細銆鍏夐銆戞槸鎸囧厜娉㈡垨鐢电娉㈠湪鐪熺┖鎴栦粙璐ㄤ腑鐨勪紶鎾熷害銆傚厜閫熷畾涔夊兼槸锛299792.458km/s锛岀害鍚堟瘡绉30涓囧叕閲屻
绛旓細鍏夐鐨勬祴閲忔柟娉曪細鏈鏃╁厜閫熺殑鍑嗙‘鏁板兼槸閫氳繃瑙傛祴鏈ㄦ槦瀵瑰叾鍗槦鐨勬帺椋熸祴閲忕殑锛庤繕鏈夎浆鍔ㄩ娇杞硶銆佽浆闀滄硶銆佸厠灏旂洅娉曘佸彉棰戦棯鍏夋硶绛夊厜閫熸祴閲忔柟娉曘備緥濡傦細1983骞达紝鍏夐熷彇浠ｄ簡淇濆瓨鍦ㄥ反榛庡浗闄呰閲忓眬鐨勯搨鍒剁背鍘熷櫒琚変綔瀹氫箟鈥滅背鈥濈殑鏍囧噯锛屽苟涓旂害瀹氬厜閫熶弗鏍肩瓑浜299,792,458绫筹紡绉掞紝姝ゆ暟鍊间笌褰撴椂鐨勭背鐨勫畾涔夊拰绉掔殑瀹氫箟...
绛旓細浠栧氨鍦ㄨ繖娆℃祴閲忚繃绋嬩腑涓锛屼簬1931骞村幓涓栥傛縺鍏夋祴绠楀厜鐨勯熷害鍦ㄦ縺鍏夊緱浠ュ箍娉涘簲鐢ㄤ互鍚庯紝寮濮嬪埄鐢ㄦ縺鍏夋祴閲忓厜閫熴傚叾鏂规硶鏄祴鍑烘縺鍏夌殑棰戠巼鍜屾尝闀匡紝搴旂敤c=位谓璁＄畻鍑哄厜閫焎锛岀洰鍓嶈繖绉嶆柟娉曟祴鍑虹殑鍏夐熸槸鏈绮剧‘鐨勩傛牴鎹 1975骞寸15灞婂浗闄呰閲忓ぇ浼氬喅璁紝鎶婄湡绌轰腑鍏夐熷煎畾涓篶锛299 792 458绫筹紡绉掋傚湪閫氬父搴旂敤澶氬彇c=...
绛旓細299792458绫/绉掋鍏夐熸槸鏃堕棿鍗曚綅锛屾牴鎹椂闂村崟浣嶇殑鎹㈢畻鍙煡锛1鍏夐=299792458绫/绉掞紝鏈鍩烘湰鐨勬柟娉曟槸閫氳繃娴嬮噺鍏夌殑浼犳挱鏃堕棿鍜岃窛绂伙紝鐢鍏夐熺瓑浜璺濈闄や互鏃堕棿鐨勫叕寮忚繘琛岃绠椼
