Wave motionHard
Question
A light of monochromatic wavelength 4000(Ao) is allowed to fall on a metal surface having work function 2eV. What is minimum de Broglie wavelength of emitted electrons -
Options
A.13.68 (Ao)
B.11.68 (Ao)
C.6.14 (Ao)
D.7.14 (Ao)
More Wave motion Questions
A star emits a light of wavelength 5896 Å and is receding away from earth with velocity of 3600 km/s. The observed wavel...Ratio of amplitudes of two waves is 3 : 4. The ratio of maximum and minimum intensity obtained from then will be :...y (x, t) = 0.8/[(4x + 5t)2 + 5] represents a moving pulse, where x & y are in meter and t in second. Then:...A 1m long wire having tension T is fixed at A and free at B. The point C, 20 cm from B is constrained to be stationary. ...When two tuning forks are sounded together x beats/sec are heard frequency of A is n. Now when one prong of B is loaded ...