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Previous Year Question (PYQs)

Assertion A:
A Raster scan device is a CRT graphic device and can use a television monitor for display.

Reason R:
In Raster scan display the picture is composed of a series of dots. These dots are traced out as a series of horizontal lines. Television works in a similar fashion.

In the light of the above statements, choose the correct answer from the options given below:





Solution

Raster scan display forms an image using many small dots called pixels.

These pixels are scanned line by line from left to right and top to bottom.

Television display also works in a similar raster scanning manner.

So, Assertion A is true.

Reason R correctly explains why raster scan devices can use television monitors.

So, Reason R is also true and it is the correct explanation of Assertion A.


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