General science 2 1. Which of the following is a possible dimensionless quantity ? velocity gradient pressure gradient displacement gradient force gradient 2. Which of the following is not a scalar quantity ? time volume density momentum 3. Root develop from any part of plant body except the radical – tap root adventitious root fibrous root tuberous root 4. Root develop from radical – fibrous root respiratory root adventitious root tap root 5. Prop root is – tap root fasiculated root branched root adventitious 6. Root from in Dahila – tuberous root fusiform root fasiculated root conical root 7. Climbing root are found in – ctenospora trapa piper betel water chestnut 8. Epiphytic root are found in – Indian rubber plant orchids amerbel none of these 9. Pnematophores are found in – Xerophytic plant Climbing plant Mangroove plant Hydrophytes plant 10. Velamen present in orchide plant – for providing support for the absorption of moisture from air for the assimilation of carbohydrate for the exchange of gasses 11. Which of the following is not a root ? potato carrot sweet potato radish 12. A plant bud is …………….. an embryonic shoot an embryonic leaf an embryonic stem a seed 13. Cathode rays have mass only charge only no mass and no charge mass and charge both 14. Neutron was discovered by J.J. Thomson Chadwick Rutherford Priestley 15. The discovery of neutron became very late because – it is present in nucleus it is fundamental particle it does not move it does not carry any charge 16. The three basic component of an atom are – proton , neutron and ions proton , neutrons and electrons protium , deuterium and tritium proton , neutrions and ions 17. The word ‘Insolation’ means ? matters which insulates incoming solar radiations insoluble matters none 18. Which of the properties of the element is a whole number ? atomic weight atomic number atomic radius atomic volume 19. Electromagnetic radiation with maximum wavelength is – ultraviolet rays radio wave X-rays infrared rays 20. The concept of dual nature of radiation was proposed by – Max planck de-Broglie Heisenberg Pauling Loading … Question 1 of 20
