Which of the following statements about photoelectrons is...
Which of the following statements about photoelectrons is correct?
A faint green light produces photoelectrons with less kinetic energy than a bright red light
A red light releases a smaller number of electrons than a green light
A faint green light produces photoelectrons with greater kinetic energy than a bright red light
A red light produces more photoelectrons than a green light
Correct answer is B
No explanation has been provided for this answer.
On an a.c generator, which of the following does not apply? ...
A battery of e.m.f. 12.0V and internal resistance0.5Ω is connected to 1.5Ω and 4.0...
What is the effect of using split-rings in a simple d.c motor? ...
Which of the following statements about matter is not correct? ...