‘ਬੰਗਾਲ ਦੀ ਦਹਿਸ਼ਤ ਕਿਸ ਬਨਸਪਤੀ ਨੂੰ ਕਿਹਾ ਜਾਂਦਾ ਹੈ?
Answers
Answered by
6
Explanation:
temperature(K) lamda=590*10**-9; # wavelength of sodium D line(m) ... ratio between stimulated emission and spontaneous emission is 5.3298 *10**- 21 ...
Similar questions