- A$\Omega\text{m}^{-1}$
- B$\Omega^{-1}\text{m}^{-1}$
- C$\Omega1$
- D$2.5-\text{m}^2$
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A current carrying loop is placed in a uniform magnetic field in four different orientations, I,II, III & IV arrange them in the decreasing order of potential Energy
(a)
(b)
(c)
(d) 
|
(a) I > III > II > IV |
(b) I > II >III > IV |
(c) I > IV > II > III |
(d) III > IV > I > II |
The ratio of thickness of plates of two transparent mediums A and B is 6 : 4. If light takes equal time in passing through them, then refractive index of B with respect to A will be
|
(a) 1.4 |
(b) 1.5 |
(c) 1.75 |
(d) 1.33 |
| A | B | Y |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
Which of the following (referred to a spherical mirror) do (does) not depend on whether the rays are paraxial or not?
Calculate the equivalent resistance between A and B
|
(a) |
(b) 3 W |
(c) 6 W |
(d) |
The energy of electron in the nth orbit of hydrogen atom is expressed as
. The shortest and longest wavelength of Lyman series will be
| (a) 910 Å, 1213 Å | (b) 5463 Å, 7858 Å | (c) 1315 Å, 1530 Å | (d) None of these |