- A8 MeV
- ✓7.0 MeV
- C11 MeV
- D4.0 MeV
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The magnetic field near a current carrying conductor is given by
|
(a) Coulomb’s law |
(b) Lenz’ law |
(c) Biot-savart’s law |
(d) Kirchoff’s law |
When a plane polarised light is passed through an analyser and analyser is rotated through 90°, the intensity of the emerging light
|
(a) Varies between a maximum and minimum |
|
(b) Becomes zero |
|
(c) Does not vary |
|
(d) Varies between a maximum and zero |
The current i in an induction coil varies with time t according to the graph shown

in figure. Which of the following graphs shows the induced emf (e) in the coil with time
|
(a)
|
(b)
|
(c) |
(d)
|
Photoelectric emission is observed from a metallic surface for frequencies
and
of the incident light rays (
. If the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of 1 : k, then the threshold frequency of the metallic surface is
|
(a) |
(b) |
(c) |
(d) |
A man can see only between 75 cm and 200 cm. The power of lens to correct the near point will be
|
(a) + 8/3 D |
(b) + 3 D |
(c) – 3 D |
(d) – 8/3 D |
In Young’s experiment, monochromatic light is used to illuminate the two slits A and B. Interference fringes are observed on a screen placed in front of the slits. Now if a thin glass plate is placed normally in the path of the beam coming from the slit
|
(a) The fringes will disappear |
|
(b) The fringe width will increase |
|
(c) The fringe width will increase |
|
(d) There will be no change in the fringe width but the pattern shifts |