Indian History Test
Who invented the laser?
  • (d) Seymour Cray
Which of the following instruments measures blood pressure?
  • (a) Sphygmomanometer
  • (b) Ammeter
  • (c) Stethoscope
  • (d) Spherometer
Which one of the following pairs of physical quantities may be represented in the same unit?
  • (a) Specific heat
  • (b) Temperature of mole
  • (c) Heat and temperature
  • (d) Heat and work
Sound cannot travel though
  • (a) Vacuum
  • (b) Solids
  • (c) Liquids
  • (d) Gases
In the electrolyte of the cell, current flows from
  • (a) Negative to negative terminal
  • (b) Positive to positive terminal
  • (c) Positive to negative terminal
  • (d) Negative to positive terminal
White light is made up of seven colours. What is the method of separating the colours?
  • (a) By passing it through a prism
  • (b) By filtration
  • (c) Can’t be separated
  • (d) Both (a) and (b)
Electric iron uses wires of alloy as
  • (a) They do not burn at high temperatures
  • (b) They do not oxidize at high temperatures
  • (c) Both (a) and (b)
  • (d) Neither (a) nor (b