Apparatus invented by Archimedes is :
Pulley
Microscope
Thermemoter
Barometer
- Which of the following elements is obtained from sea weeds ?
- Epoxy resins is used as
- Water has maximum density at
- The speed of light with the rise in the temperature of the medium
- One fathom is equal to
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- The removal of top soil by water or wind is called
- Which of the following is commonly called a polyamide ?
- Quartz crystals normally used in quartz clocks etc. is chemically
- The marine animal called dugong which is vulnerable to extinction is a/an
- In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
- Old-written material, which cannot be read easily can be read by
- The major ingredient of leather is
- The smallest functional and structural unit of kidney is called as
- Lightening cause rainfall because
- Which of the following is in liquid form at room temperature ?
- The hardest substance available on earth is
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
- The property of a substance to absorb moisture from the air on exposure is called
- Brass gets discoloured in air due to the presence of which gas in air
- The recent atomic weight scale is based on
- Pollination by birds is called
- According to Daltons atomic theory the smallest particle which can exist independently is
- Bromine is
- Cell membrane is
- Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
- Which of the following is the lightest metal ?
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- The most important ore of Aluminium is