Photoelectric EffectHard
Question
A source of light is placed at a distance of 20 cm from a photo cell and stopping potential is found to be 0.6 V. If the distance of source is now changed to 40 cm the stopping potential will be
Options
A.0.3 V
B.0.6 V
C.1.2 V
D.2.4 V
More Photoelectric Effect Questions
In an x-ray tube the voltage applied is 20KV. The energy required to remove an electron from L shell is 19.9 KeV. In the...Which of the following is the wave length of X-ray:...The ionisation energies of K-shell for cobalt, copper, and molebdenum are 7.8, 9.0 and20.1 KeV respectively. If any meta...An image of the sun is formed by a lens of focal length 30 cm on the metal surface of a photo-electric cell and it produ...The distance between a point source of light and a screen which is 60 cm is increased to 180 cm. The intensity on the sc...