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Last-Minute General Science
Highest-yield general science facts for final revision: deficiency diseases, units, instruments, defence and space facts, and everyday phenomena in compact tables
CAPF wiki•2 min read•7 sections
At a glance
SubjectGeneral Science
One screen per section. Cover the right column and test yourself.
| Deficiency |
Disease |
| Vitamin A |
Night blindness |
| Vitamin B1 (thiamine) |
Beriberi |
| Vitamin B12 |
Anaemia |
| Vitamin C |
Scurvy |
| Vitamin D |
Rickets (children), osteomalacia (adults) |
| Iron |
Anaemia |
| Iodine |
Goitre |
| Protein |
Kwashiorkor, marasmus |
| Quantity |
SI unit |
| Length |
metre |
| Mass |
kilogram |
| Time |
second |
| Electric current |
ampere |
| Temperature |
kelvin |
| Force |
newton |
| Energy / work |
joule |
| Power |
watt |
| Pressure |
pascal |
| Frequency |
hertz |
| Instrument |
Measures / use |
| Barometer |
Atmospheric pressure |
| Hygrometer |
Humidity |
| Anemometer |
Wind speed |
| Seismograph |
Earthquakes |
| Lactometer |
Purity of milk |
| Sphygmomanometer |
Blood pressure |
| Ammeter / Voltmeter |
Current / voltage |
| Thermometer |
Temperature |
| Fact |
Detail |
| INS Vikrant |
First indigenously built aircraft carrier |
| INS Arihant |
First indigenous nuclear submarine |
| Agni / Prithvi |
Ballistic missile families |
| BrahMos |
India-Russia supersonic cruise missile |
| ISRO Mars mission |
Mangalyaan (2013) |
| ISRO lunar programme |
Chandrayaan |
| PSLV / GSLV |
ISRO launch vehicles |
| DRDO |
Defence Research and Development Organisation |
| Phenomenon |
Cause |
| Blue sky |
Scattering of light (Rayleigh scattering) |
| Red sunset |
More scattering of short wavelengths at low sun angle |
| Rainbow |
Dispersion and internal reflection in water droplets |
| Mirage |
Refraction and total internal reflection in hot air layers |
| Floating in sea water |
Greater density gives greater buoyancy (Archimedes) |
| Twinkling of stars |
Atmospheric refraction |
- Common salt is sodium chloride (NaCl); baking soda is sodium bicarbonate.
- Diamond is the hardest natural substance (a form of carbon).
- Insulin is produced by the pancreas; its lack causes diabetes.
- Scalars (speed, mass) have magnitude only; vectors (velocity, force) have direction too.
- The dominant human-caused greenhouse gas is carbon dioxide.