As object approaches a converging lens from infinity to its focus with a uniform speed, its image moves away from the lens. The image starts from focus and goes upto infinity. The image is real and inverted one. Class 12 ...
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The brightness of the bulb does not change because there is no effect of inductance of the solenoid in a d.c. circuit. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
Zero, because force and displacement are in mutually perpendicular directions. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
Magnetic dipole moment. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
In a p-n junction, under equilibrium, the drift current and the diffusion current are equal in magnitude but mutually opposite in direction and thus balance each other. So net current is zero. Class 12 Physics NCERT Sample Paper Question Session ...
Generally alloys are preferred for making standard resistors on account of their high resistivity and extremely low value of temperature coefficient of resistivity. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
1.6 x 10-¹² С. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
No change in inductance L is expected because it is independent of current flowing through the solenoid coil. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
Ultraviolet rays. Class 12 Physics NCERT Sample Paper Question Session 2024-2025.
Doping of an intrinsic semiconductor means deliberately introducing a controlled quantity (generally 1 part in 10° parts or 0.0001%) of impurity element which is either pentavalent or trivalent so as to obtain n-type and p-type semiconductors, respectively. The electrical conductivity ...