Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

A semiconductor dopped with a donor impurity is (a) P-type (b) N-type (c) NPN type (d) PNP type

Angle of minimum deviation for a prism of refractive index 1.5 is equal to the angle of prism. The angle of prism is (cos 41° = 0.75)(a) 62°(b) 41°(c) 82°(d) 31°

In a Bainbridge mass spectrometer positive rays of the same element produce different traces. The traces correspond to:

If heat is supplied to a solid, its temperature:

1. Must increase.
2. May increase.
3. May remain constant.
4. May decrease.

The total power content of an AM wave is 900 W. For 100% modulation, the power transmitted by each side band is (a) 50 W(b) 100 W(c) 150 W(d) 200 W

Power factor of LCR circuit in resonance is:

A charged particle is moved along a magnetic field line. The magnetic force on the particle is:

Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor small quantity of antimony is added(a) The material obtained will be N-type germanium in which electrons and holes are equal in number(b) The material obtained will be P-type germanium(c) The material obtained will be N-type germanium which has more electrons than holes at room temperature(d) The material obtained will be N-type germanium which has less electrons than holes at room temperature