A hole in a P-type semiconductor is
| (a) An excess electron | (b) A missing electron |
|
(c) A missing atom |
(d) A donor level |
A hole in a P-type semiconductor is
| (a) An excess electron | (b) A missing electron |
|
(c) A missing atom |
(d) A donor level |
(b) A missing electron
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Deviation of 5° is observed from a prism whose angle is small and whose refractive index is 1.5. The angle of prism is
|
(a) 7.5° |
(b) 10° |
(c) 5° |
(d) 3.3° |
What is the net force on the square coil

|
(a) 25 |
(b) 25 |
|
(c) 35 |
(d) 35 |
Total internal reflection is possible when light rays travel
|
(a) Air to water |
(b) Air to glass |
(c) Glass to water |
(d) Water to glass |
A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is .....
|
(a) Towards north |
(b) Towards south |
(c) Towards east |
(d) Towards west |
Line spectrum contains information about
|
(a) The atoms of the prism |
|
(b) The atoms of the source |
|
(c) The molecules of the source |
|
(d) The atoms as well as molecules of the source |