- AJoule
- BVolt
- COhm
- DCoulomb
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The smallest temperature difference that can be measured with a combination of a thermocouple of thermo e.m.f. 30mV per degree and a galvanometer of 50 ohm resistance, capable of measuring a minimum current of 3 × 10–7 amp is
|
(a) 0.5 degree |
(b) 1.0 degree |
(c) 1.5 degree |
(d) 2.0 degree |
A particle of mass M at rest decays into two particles of masses m1 and m2, having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles,
is
|
(a) |
(b) |
(c) 1.0 |
(d) |
In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called
|
(a) MRI |
(b) PET |
(c) CAT |
(d) SPECT |