Question is ⇒ In a Vidicon camera tube,, Options are ⇒ (A) both sides of the target plate have the coating of tin oxide, (B) both sides of the target plate have the coating of antimony tri-sulphide, (C) the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide, (D) the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide, (E) , Leave your comments or Download question paper.

Question is ⇒ In a Vidicon camera tube,, Options are ⇒ (A) both sides of the target plate have the coating of tin oxide, (B) both sides of the target plate have the coating of antimony tri-sulphide, (C) the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide, (D) the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a Vidicon camera tube,
A.	both sides of the target plate have the coating of tin oxide [Wrong Answer]
B.	both sides of the target plate have the coating of antimony tri-sulphide [Wrong Answer]
C.	the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide [Correct Answer]
D.	the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ In a bipolar transistor at room temperature if the emitter current is doubled the voltage across its base emitter junction
doubles
halves
increase by about 20 mV
decrease by about 20 mV

⇒ Which materials find application in MASER?
Diamagnetic
Paramagnetic
Ferromagnetic
Ferrimagnetic

⇒ The addition of n type impurity to intrinsic material creates allowable energy levels.
slightly below conduction band
slightly above conduction band
slightly below valence band
slightly above valence band

⇒ Which of the following microphones works on the principle of Faraday's law?
Carbon
Condenser
Moving coil
Electret

⇒ Which of the following oscillator is generally not used at VHF?
Colpitts oscillator
Clapp oscillator
Armstrong oscillator
Ultra Audio oscillator

⇒ Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after SBI 0B7H?
12 H, 0
12 H, 1
DDH, 0
DDH, 1

⇒ In the given figure shows a negative logic AND gate. If positive logic is used this gate is equivalen
AND gate
OR gate
NOR gate
NAND gate

⇒ In 8085 the term 'absolute addressing' means
Direct addressing
Immediate addressing
Register addressing
Register indirect addressing

⇒

Assertion (A): C has 32 keywords like auto, if, do, float etc.

Reason (R): Key words can not be used as variable names in C.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct R is wrong
A is wrong R is correct

⇒ Assume that x = 5 and y = 2. Then in Java operation x + = y, the result is
x = 7
x = 2
x = 3
x = 2

⇒ A system is said to be static system, when present output depend upon
present I/P
presrent and past
present and future
past and future

⇒ In which function is each term known as minterm?
SOP
POS
Hybrid
Both SOP and POS

⇒ Household taperecorders generally use
crystal microphone
moving coil microphone
condenser microphone
cardioid microphone

⇒ The number of valence electrons in a donor atom is
2
3
4
5

⇒ Which configuration has high input impedance and low output impedance?
CB
CE
CC
CB and CE

⇒ In a biased limiter the clipping level can be adjusted by adjusting the voltage of battery.
TRUE
FALSE

⇒ A coil with large distributed capacitance has a
high resonant frequency
low resonant frequency
low quality factor
low resistance

⇒ Consider the following statements.

Etching
Exposure to UV radiation
Stripping
Developing

After a wafer has been coated with photo resist the correct sequence of these steps in photolithography is
2, 4, 3, 1
2, 4, 1, 3
4, 2, 1, 3
3, 2, 3, 1

⇒ Consider the following rules for constructing variable names in C

It can have alphabets, digits or underscores but no other special character.
The maximum number of characters is 8.
The first character may be an alphabet or digit but not underscore.

Which of the above are correct?
All
1 and 2 only
1 and 3 only
2 and 3 only

⇒ In PM, without any modulation, all the transmitted pulses have the same
amplitude
width
amplitude and spacing
amplitude, spacing and width

⇒ Ferrite have
low copper loss
low eddy current loss
low resistivity
higher specific gravity compared to iron

⇒ In a CE amplifier the ac emitter resistance
is zero
is high
is very high
may have any value

⇒ The source of the harmonic distortion in a RC coupled transistor amplifier is usually
power supply
capacitor
R-C circuit
transistor

⇒ A NOR gate has 3 inputs A, B, C. For which combination of inputs is output HIGH
A = B = C = 0
A = B = C = 1
A = B = 1 and C = 0
A = C = 1 and B = 0

⇒ Graphic equaliser system in stereophonic systems generally have
3 or 4 bands
1 band
more than 8 bands
large number of bands

⇒ The induced magnetic dipole moment has a direction opposite to the applied magnetic field.
TRUE
FALSE

⇒ In figure, the magnitude
must be more than that of V_a
must be more than that of V_b
must be more than that of V_a or V_b
can be equal to or less than or more than that of V_a or V_b

⇒ The size of cache memory in most microcomputers is about
a few bytes
a few kilobytes
a few megabytes
a few gigabytes

⇒ Identical telephone numbers in different parts of a country are distinguished by their
area codes
office codes
access digits
language codes

⇒ Pentavalent impurity creates n type semiconductor.
TRUE
FALSE