Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) A 100 watt light source is emitting radiations of wavelength `5000overset{o}{A}`. The rate of emission of photons is of the order of - Sarthaks eConnect

A 100 watt light source is emitting radiations of wavelength `5000overset{o}{A}`. The rate of emission of photons is of the order of:

`10^40`

`10^20`

`10^10`

`10^5`