Science (English Medium)
Academic Year: 2006-2007
Date: March 2007
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An electron, an alpha particle and a proton have the same kinetic energy.
Which one of these particles has the largest de-Broglie wavelength?
Chapter: [0.11] Dual Nature of Radiation and Matter
Why should the material used for making permanent magnets have high coercivity?
Chapter: [0.05] Magnetism and Matter
The radioactive isotope D decays according to the sequence
If the mass number and atomic number of D2 are 176 and 71 respectively, what is (i) the mass number (ii) atomic number of D?
Chapter: [0.13] Nuclei
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What will be the values of input A and B for the Boolean expression `overline ((A +B) .(A*B)) =1?`
Chapter: [0.14] Semiconductor Electronics - Materials, Devices and Simple Circuits
Why is frequency modulation preferred over amplitude modulation for transmission of music?
Chapter: [0.15] Communication Systems
The output of an OR gate is connected to both the inputs of a NAND gate Draw the logic circuit of this combinaion of getes and write its truth table.
Chapter: [0.14] Semiconductor Electronics - Materials, Devices and Simple Circuits
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Draw a plot of potential energy of a pair of nucleons as a function of their separation.
what is the significance of negative potential energy in the graph drawn?
Chapter: [0.02] Electrostatic Potential and Capacitance
A convex lens of refractive index 1.5 has a focal length of 18 cm in air .Calculate the change in its focal length when it is immersed in water of refractive index `4/3`.
Chapter:
The output of an OR gate is connected to both the inputs of a NAND gate Draw the logic circuit of this combinaion of getes and write its truth table.
Chapter: [0.14] Semiconductor Electronics - Materials, Devices and Simple Circuits
Draw a plot of potential energy of a pair of nucleons as a function of their separation.
what is the significance of negative potential energy in the graph drawn?
Chapter: [0.02] Electrostatic Potential and Capacitance
A convex lens of refractive index 1.5 has a focal length of 18 cm in air .Calculate the change in its focal length when it is immersed in water of refractive index `4/3`.
Chapter:
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CBSE previous year question papers Class 12 Physics with solutions 2006 - 2007
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