[唔知係第幾個post]2020 DSE physics 討論區

下次入機

下面係咪話因為not all electrons are at surface of metal所以photoelectrons will be emitted at a range of KE values就得

我知part of energy of photon is used但唔肯定用左係邊

https://gofile.io/d/LH1vHU
試下Down唔download 到

thx

第15應該係A

pin左
巴打會唔會出1b既solution?

巴打有冇中文版?

24dm is for room temperature and pressure only

仲以為physics都有神技用
明明記得得chem有教

應該係用pV = nRT

有
doc都有

MC I5應該係A
你可以見到市面上有嘅slit width of single slit都係0.02 0.04 0.07 0.16 mm
https://www.pasco.com/resources/lab-experiments/791

Double slit = 2個Single slit 加埋
無理由 Double slit 嘅slit separation 仲細過single slit width.

1mm 太大，做唔到足夠嘅Diffraction

求share

Atomic 2.4 應該係B 定D？
He2+ 都係一粒 electron
所以bohr model 都用得？