Complete the reaction ![]()
|
(a) |
(b) |
(c) |
(d) |
Complete the reaction ![]()
|
(a) |
(b) |
(c) |
(d) |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
In a forward biased PN-junction diode, the potential barrier in the depletion region is of the form …
|
(a)
|
(b)
|
(c)
|
(d)
|
A dip needle lies initially in the magnetic meridian when it shows an angle of dip q at a place. The dip circle is rotated through an angle x in the horizontal plane and then it shows an angle of dip
. Then
is
|
(a) |
(b) |
(c) |
(d) cos x |
The image of an extended object, placed perpendicular to the principal axis of a mirror, will be erect if:
de-Broglie wavelength of a body of mass 1 kg moving with velocity of 2000 m/s is
|
(a) 3.32 × 10–27 Å |
(b) 1.5 × 107 Å |
(c) 0.55 × 10–22 Å |
(d) None of these |
A metallic square loop ABCD is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in the figure. An electric field is induced

|
(a) In AD, but not in BC |
(b) In BC, but not in AD |
|
(c) Neither in AD nor in BC |
(d) In both AD and BC |