Which of the following curved surfaces will produce a rea...
Which of the following curved surfaces will produce a real image? I. Concave mirror II. Convex mirror III. Diverging lens IV. Converging lens
I and III only
I, II and IV only
II, III and V only
II and IV only
Correct answer is D
Convex (converging) lenses can form either real or virtual images, whereas concave (diverging) lenses can form only virtual images
Which of the following radiations constitutes a stream of electrons? ...
Which of the following ammeters may be used to measure alternating currents? i. moving-coil ammet...
Which of the following electromagnetic wave can be detected by its heating effect? ...
In the network shown above, determine the potential difference across the 5µF capacitor...
The value of T in the figure above is ...
The major difference between a pure semiconductor and a pure metal is that ...