Correct option is B
overhead projector is a device that projects an enlarged image of an acetate or other transparency placed on it on to a wall or screen by means of an overhead mirror.
overhead projector is a device that projects an enlarged image of an acetate or other transparency placed on it on to a wall or screen by means of an overhead mirror.
Which one of the following is not a characteristic of a good test?
Suggested Test Series
Suggested Test Series