Answer:
UPS is abbreviation of Uninterrupted power supply. It is a battery backup devices useful when major supply is interrupted due to any reason.
It performs the following functions:
1. It provides protection from power surges.
2. Smooth out noisy power sources
Answer:
The correct option is;
d. Prime
Explanation:
A prime lens is a unifocal, or fixed-focal-length lens and it is referred to as the opposite of a zoom lens
The maximum aperture of ranges from f2.8 to f1.2, which are fast and have a creamy rendering of light that are out of focus, and also provide crispy image details, by making the most use of the light available and provide distinct combination of foreground and background images in pictures that give a crisp and visually pleasing appearance.
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