Find CBSE Class 12th Physics Question Paper 2011. Get the idea that what types of questions had been asked in the cbse class 12th board exam Physics question paper. The pattern in which the Question Paper is set is quite different from the manner in which the course structure is defined actually. In spite of the predefined Course, Curriculum there are certainly some loop holes between the question paper formed and the content of the course. Henceforth, students needs to identify these gaps and catch up where the textbooks left off, if they want to get acquainted with the examination pattern. This not only helps them prepare for exams in a better manner, but also helps them in understanding the depth with which a topic should be studied.
Few Sample Questions from this paper are as follows:
Q. A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 12 V. What is the potential at the centre of the sphere?
Q. Define the term 'stopping potential’ in relation to the photoelectric effect.
Q. A thin, straight, infinitely long conducting wire having charge density is enclosed by a cylindrical surface of radius r and length l, its axis coinciding with the length of the wire. Find the expression for the electric flux through the surface of the cylinder.
Q. Draw a plot showing the variation of photoelectric current with collector plate potential for two different frequencies, v1 > v2, of incident radiation having the same intensity. In which case will the stopping potential be higher? Justify your answer.