Which one is reverse-biased
|
(a)
|
(b)
|
(c)
|
(d)
|
Which one is reverse-biased
|
(a)
|
(b)
|
(c)
|
(d)
|
(c)

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Liquid oxygen remains suspended between two pole faces of a magnet because it is
|
(a) Diamagnetic |
(b) Paramagnetic |
(c) Ferromagnetic |
(d) Antiferromagnetic |
The index of refraction of diamond is 2.0, velocity of light in diamond in cm/second is approximately
|
(a) 6 |
(b) 3.0 |
(c) |
(d) |
Atomic power station at Tarapore has a generating capacity of 200 MW. The energy generated in a day by this station is
|
(a) 200 MW |
(b) 200 J |
(c) 4800 |
(d) 1728 |
The diagram shows the path of four a-particles of the same energy being scattered by the nucleus of an atom simultaneously. Which of these are/is not physically possible

|
(a) 3 and 4 |
(b) 2 and 3 |
(c) 1 and 4 |
(d) 4 only |
The phenomenon utilised in an optical fibre is
|
(a) Refraction |
(b) Interference |
|
(c) Polarization |
(d) Total internal reflection |
To deposit one litre of hydrogen at 22.4 atmosphere from acidulaled water, the quantity of electricity that must pass through is
|
(a) 1 coulomb |
(b) 22.4 coulomb
|
(c) 96500 coulomb |
(d) 193000 coulomb |