What if Britain destroyed the German surface fleet in Norway?

What changes if Britain destroys Germany's major surface fleet in Norway in 1940?

British capital ships and carriers could shift from guarding against German surface raiders to the Mediterranean and later the Indian Ocean, increasing pressure on Italy and strengthening Far Eastern deterrence.

A hypothetical Copenhagen-style attack destroys the German battleships and cruisers concentrated in Norway. The scenario assumes that the attack succeeds without heavy British losses and removes the main surface-raider threat early in 1940. The North Atlantic would then become principally an anti-submarine problem, allowing cruisers and destroyers to cover much of the remaining work while capital ships stayed available elsewhere. More battleships and carriers could concentrate against Italy, potentially enlarging the attack on Taranto and increasing Italian naval losses in 1940-41. By 1941, a stronger British force might also be available for the Indian Ocean and deterrence in the Far East. The resulting redistribution of British naval strength depends on the attack's timing and losses.