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(Download) Physics Sample Paper Class XII For CBSE Board 2011
Physics Sample Paper Class XII For CBSE Board 2011
Find the net resistance if the resistance of each resistor is 1Ω.
In which of the following circuits will the bulb stop glowing after some
time? In which case will it continue?
Consider the following diffraction patter where MN is a slit which is
divided into 3 equal parts by 2 imaginary points O and Ó.
The position of first bright fringe is given by a point P. Waves from M
and O have a phase difference 2π at P. What will you observe if?
If Phase difference between potential difference and current in a RL
circuit is 90 degree, find the time lag between them where power is supplied
by an A.C. source of frequency 10 Hz.
Draw the circuit diagram for a p-n-p transistor under active region and
represent the depletion region.
Let the potential gradient be 5 V/m in a potentiometer. Let 10 A of
current flow through the potentiometer wire and current the through 5 Ω
resistor is Zero. Find the position of null deflection from end A.
Four plates are connected to 2 different batteries of same volt as shown
below.(Note: the wires of the battery meet each other and the magnitude of
surface charge density of each plate is σ). Find the electric field between
second plate and third plate.
Name the different layers of atmosphere and the frequencies that the
respective layers affect.