Daily Question Banks for Engineering Entrance and Board Exams

Questions
Physics
In a photoelectric experiment set up, photons of energy 5 eV falls on the cathode having work function 3 eV. (a) If the saturation current is iA = 4A for intensity 10-5 W/m2, then plot a graph between anode potential and current. (b) Also draw a graph for intensity of incident radiation 2 x 10-5 W/m2.

Chemistry
The number of isomers for the compound with molecular formula C2BrCIFI is
(a) 3 (b) 4 (c) 5 (d) 6

Mathematics
Fill in the blanks :
A polygon of nine sides, each of length 2, is inscribed in a circle. The radius of the circle is ................
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