- A16 Isotopes.
- B32 Isotopes.
- C96 Isotopes.
- D173 Isotopes.
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A passenger in an aeroplane shall:
Identify the paramagnetic substance
|
(a) Iron |
(b) Aluminium |
(c) Nickel |
(d) Hydrogen |
Figure shows the cross-sectional view of the hollow cylindrical conductor with inner radius 'R' and outer radius '2R', cylinder carrying uniformly distributed current along it's axis. The magnetic induction at point 'P' at a distance from the axis of the cylinder will be
|
(a) Zero |
(b) |
(c) |
(d) |
A parallel beam of monochromatic light of wavelength 5000 Å is incident normally on a single narrow slit of width 0.001 mm. The light is focused by a convex lens on a screen placed on the focal plane. The first minimum will be formed for the angle of diffraction equal to
|
(a) 0o |
(b) 15o |
(c) 30o |
(d) 60o |
Two magnets, each of magnetic moment ‘M’ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
|
(a) 2M |
(b) |
(c) 0.5 M |
(d) M |
X-rays are produced in laboratory by
|
(a) Radiation |
|
(b) Decomposition of the atom |
|
(c) Bombardment of high energy electron on heavy metal |
|
(d) None of these |
The dielectric constant k of an insulator cannot be
|
(a) 3 |
(b) 6 |
(c) 8 |
(d) ∞ |