Home

Air escaping rapidly from a narrow orifice in an inflated tyre feels cool because

A. the speed with which it escapes cools it down

B. of the higher temperature of the surroundings

C. of sudden expansion causing loss of internal energy

D. there is no real fall in temperature

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. When a bullet is fired from a gun
  2. Holography is the technique of
  3. A stationary elevated object has
  4. The planet that spins Caster than any other planet is
  5. The colour or an opaque object is due to the colour it
  6. The audible range of a normal human ear is frequencies ranging from
  7. When a light ray is reflected repeatedly by a set of parallel plane mirrors, the intensity of light…
  8. The radiator in a car serves to
  9. The world's first artificial satellite Sputnik I was launched by Russia in
  10. Dioptre is the unit of power of
  11. One can be recognised by his voice alone due to the factor of
  12. Heat transfer
  13. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because
  14. The device for tracking and locating the position of a moving object in space is called
  15. Which of the following has the highest refractive index?
  16. Photoelectric cell is a device which converts
  17. Atoms which have the same atomic number but different mass numbers are called
  18. A thermostat is a device used
  19. In very cold countries alcohol is used as a thermometric liquid because
  20. Air escaping rapidly from a narrow orifice in an inflated tyre feels cool because
  21. Pieces of camphor placed on water move about rapidly. This is because of
  22. When temperature decreases, resistance of metals to flow of electricity
  23. The fact that two large ships travelling on close parallel courses in the same direction tend to move…
  24. When the resistance of a circuit increases the current will
  25. When a particle in motion is acted upon by a force in a direction perpendicular to the direction of…
  26. Sun spots are
  27. Frictional force acts in
  28. Of the following types of electromagnetic radiation which has the longest wavelength?
  29. Photo-electric cells convert
  30. A ruse wire is characterised by