1. Camera converts optical signal into,
(A) Electrical Signal
(B) Light Signal
(C) Movie
(D) None of These
2. C.C.D stands for
(A) Charge capacitive device
(B) Charge coupled design
(C) Charge coupled device
(D) None of These
3. Materials have property that, when light falls on them, their resistance varies according to light intensity;
(A) Photo Conductivity
(B) Photo Emission
(C) Both A & B
(D) None of These
4. The diameter of the beam is called;
(A) Gamma
(B) Beam aperture
(C) Resolution
(D) None of These
5. The audio recording contains frequencies
(A) None of These
(B) 50Hz to 75 KHz
(C) 100Hz to 750 KHz
(D) 20Hz to 15 KHz
6. The frequency range of video recording is;
(A) Some Hz to few KHz
(B) Some KHz to few MHz
(C) Some Hz to few MHz
(D) None of These
7. Materials are used as photo emissive surfaces for TV camera tubes.
(A) All of These
(B) Bismuth Silver Cesium
(C) Oxides
(D) Cesium Silver
8. A camera tube called following uses the principle of photo conductivity for its operation.
(A) Plumbicon
(B) Vidicon
(C) Image Orthicon
(D) None of These
9. A camera tube uses the principle of photo conductivity for its working.
(A) None of These
(B) Image Orthicon
(C) Solid State
(D) Vidicon
10. A camera tube uses the principle of photo conductivity for its working.
(A) None of These
(B) Image Orthicon
(C) Solid State
(D) Plumbicon
11. In vidicon camera tube, the control Grid G2, which is at following volts.
(A) 400 V
(B) 300 V
(C) 30 V
(D) None of These
12. In vidicon camera tube, the control Grid G1, which is at following volts.
(A) 300 V
(B) 400 V
(C) 30 V
(D) None of These
13. The current which flows for zero light input is called
(A) Light Current
(B) Zero Current
(C) Dark Current
(D) None of These
14. The construction of plumbicon camera tube is similar to vidicon camera tube
(A) None of These
(B) Pin junction
(C) Glass Envelope
(D) Target