The location and energy of an electron in an atom can be
specified by
1 Atomic mass
2 Atomic number
3 Quantum numbers
4 None of these
The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold
13 Answers FCI, University of Ilorin,
The filament of an electric bulb is made of 1 Iron 2 Nichrome 3 tungsten 4 Graphite
9 Answers Germanium, Google, Graphite India, Tungsten,
In an atomic nucleus, neutrons and protons are held together by 1 Gravitational forces 2 Magnetic forces 3 Exchange force 4 Coulombic forces
Which scientist made detailed study on novae?
What is difference between nanoscience and nanotechnology?
1 Answers GSK GlaxoSmithKline,
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
What is one light year?
Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
What is the Protoplasm ?
why is it important that sex cells have half the number of Chromosomes as body cells?
tea will coll most easily in a: