Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Two metallic charged spheres whose radii are 20 cm and 10 cm respectively, have each 150 micro - coulomb positive charge. The common potential after they are connected by a conducting wire is
|
(a) 9 × |
(b) 4.5 × |
(c) 1.8 × |
(d) 13.5 × |
The incident photon involved in the photoelectric effect experiment.
|
(a) Completely disappears |
|
(b) Comes out with an increased frequency |
|
(c) Comes out with a decreased frequency |
|
(d) Comes out without change in frequency |
A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to the one of the sides of the loop and is in the plane of the loop. If a steady current I is established in wire as shown in figure, the loop will
| (a) Rotate about an axis parallel to the wire |
| (b) Move away from the wire or towards right |
| (c) Move towards the wire |
| (d) Remain stationary |
The X – 1/T graph for an alloy of paramagnetic nature is shown in Fig. The curie constant is, then
|
(a) 57 K |
(b) 2.8 |
(c) 570 K |
(d) 17.5 |
