Question

Write einstein's photoelectric equation and pointbout any two characteristics properties of photons

Answer 1

Answer:

Photons are small packets of energy. 2) Photons collide elastically with material particles, Energy and Momentum are conserved on the average (Macroscopically). So, The energy transfer happens instantaneously without any time lag.

Einstein's photoelectric effect equations:

hv=. ϕ +K.E.

Where h → Planck's constant

v→frequency of the incoming photons

ϕ →work functions of the material and

KE → Kinetic energy

Answer 2

Answer:

Einstein's photoelectric equation is given by,

• Energy supplied to the electron = hf (energy from the photon)
• Energy used by the electron is either: used as work function, Φ, to escape from the surface. ...
• Energy supplied = energy used. Or. ...
• This is Einstein's Photoelectric Equation. ...

Characteristic property of photons:

• i) Energy of photon is directly proportional to the frequency.
• ii) Total energy and momentum of the system of two constituent particles remain constant in photon-electron collision.