Home

When a bottle of perfume la opened in one corner of a room the smell spreads soon throughout the room. This is an example of

A. surface tension

B. capillarity

C. viscosity

D. diffusion

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

You can do it
  1. Choose the scalar quantity from the following physical quantities
  2. Nuclear fission process means
  3. Rays from the headlight of a motor car are rendered parallel by suitably using
  4. The completely dark portion of a shadow of an object is known as
  5. A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps
  6. If you want a sound proof room, the walls should be
  7. The coil of an electric heater is made of
  8. A bullet is fired at a certain angle with the horizontal. Its path will be
  9. The colour of the light which travels through glass with minimum speed is
  10. Alternating Current (AC) is more advantageous than direct current because
  11. Chronometer la an instrument to measure
  12. A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point…
  13. To get 5 images of a single object one should have two plane mirrors inclined at an angle of
  14. The heat produced in a conductor due to the passage of a current through it is proportional to
  15. The Indian Space Research Organisation (ISRO) is located at
  16. In which of the following will a piece of iron weigh most?
  17. At what temperature do the Fahrenheit and Celsius scales give the same reading?
  18. A tube light works on the principle of
  19. The power of a lens is
  20. Which force is used when milk is churned to separate cream?
  21. One can be recognised by his voice alone due to the factor of
  22. A solar eclipse occurs when the earth, the sun and the moon are in a straight line, and
  23. Diamond shines because of its
  24. The inside of both the walls of a thermos flask is silvered i.e., on the vacuum side in order to reduce…
  25. The speed at which light travels in vacuum is
  26. When temperature decreases, resistance of metals to flow of electricity
  27. X-rays are
  28. Cyclotron is an apparatus used
  29. Heat is transmitted from one end of a metal rod to its other end by the method of
  30. In an oil lamp, holes are provided below the chimney so that