Question

True/False,
a)what is plasma moniter? what are its advantages and disadvantages? (marks3)
b) describe the parts of overhead projector?(marks2)​

Answer 1

Answer:

no.1== false

no.2==false ok

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Answer 2

a)A plasma display panel or PDP is a display technology characterized by the flat panel orientation similar to LED display and OLED panels and different from CRT displays. The technology is explicitly based on the use of plasma or electrically charged ionized gases to produce colors.

Advantages:

1)Better than CRT displays

2)More Compact than CRT

3)Wide Viewing Angle

Disadvantages:

1)Susceptibility to Degradation

2)Flickering Effects

3)Higher Power Consumption

b)The lamp is the light source, and it is found on the base (box) of the overhead projector. The reflector is placed being the lamp, so that it can direct the light forward toward a mirror. ... Projection Stage -This is a glass surface where transparencies are placed to be projected.