Here are two questions I am stuck on:(adsbygoogle = window.adsbygoogle || []).push({});

1. How many visible photons are produced per second from a 2Watt lamp? It says the range of the wavelengths is near 5x10^-7m. I tried this and got 3.33x10^33Hz but apparently thats wrong so please help me.

2. A photon of frequency 6x10^14Hz explores a path 6m long. Find the time of travel and the number of rotations of the phasor. This one I dont have a clu how to start but if I get the first answer I can easily work out the number of rotations of the phasor.

Please help me as I am really stuck...physics is really hard on this AS course. Thanks for all your help

meawinner

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# AS physics question Please Help its hard

Loading...

**Physics Forums | Science Articles, Homework Help, Discussion**