The magnetic susceptibility of any paramagnetic material changes with absolute temperature T as
|
(a) Directly proportional to T |
(b) Remains constant |
|
(c) Inversely proportional to T |
(d) Exponentially decaying with T |
(c) Inversely proportional to T
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Gauss’s law is true only if force due to a charge varies as
|
(a) |
(b) |
(c) |
(d) |
Mixed 
and 
ions (mass of 
and that of 
beam passes a region of constant perpendicular magnetic field. If kinetic energy of all the ions is same then
|
(a) |
|
(b) |
|
(c) All the ions will be deflected equally |
|
(d) No ions will be deflected |
Light rays from a source are incident on a glass prism of index of refraction μ and angle of prism α. At near normal incidence, the angle of deviation of the emerging rays is
|
(a) (μ – 2)α |
(b) (μ – 1) α |
(c) (μ + 1) α |
(d) (μ + 2) α |
If a star is moving towards the earth, then the lines are shifted towards
|
(a) Red |
(b) Infrared |
(c) Blue |
(d) Green |
