How many pipes are there in single stack system?
AOne
BTwo
CZero
DThree
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
An object placed at a distance of 25 cm from a converging lens forms a real and inverted image at 30 cm from the lens. The magnification produced by the lens is equal to:
Which of the following materials is preferably used in making heating elements of electrical heating devices?
Which of the following types of images can be obtained on a screen?
- (a) Real and enlarged
- (b) Real and diminished
- (c) Virtual and enlarged
- (d) Virtual and diminished
A boy focusses a sharp image of a distant object on a screen using a lens. The distance between the approximately equal to?