Electron-volt is a unit of

A. power

B. velocity

C. energy widely used in nuclear physics

D. number of electrons

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

You can do it
  1. Besides protons, the nucleus of an atom contains
  2. A car parked in the sun with its windows closed gets terribly hot inside. This is due to
  3. To produce beats it is necessary to have two waves
  4. A star contains
  5. Which of the following is wrongly matched?
  6. Solar radiation is preferred to other sources of energy because
  7. When a whistling engine approaches a person standing on the platform, the frequency or the note
  8. The radius of an atom is approximately
  9. No current will flow between two charged bodies if they have the same
  10. The device for tracking and locating the position of a moving object in space is called
  11. Raindrops assume a spherical shape because or
  12. An ammeter has
  13. Thick brick walls are used in the construction or a cold storage because bricks
  14. Water kept in an earthen pot is less cool on rainy days than in summer because during the rainy days
  15. The heat produced in a conductor due to the passage of a current through it is proportional to
  16. A cyclist leans inwards when he is negotiating a curve 10 that
  17. Gamma radiations are used for
  18. The brightest planet in the Solar System is
  19. In a refrigerator, the refrigerant is
  20. A balloon ruled with hydrogen will
  21. A timer in a race is at the finish line. He should start his stop watch
  22. Atoms which have the same atomic number but different mass numbers are called
  23. Enriched uranium means
  24. Photocells are used
  25. A wire conveying a current deflects a pivoted magnetic needle. This was discovered by
  26. If you want a sound proof room, the walls should be
  27. The earth satellite Aryabhatta was put in orbit by India on
  28. If the speed of the rotation of the earth increases the weight of a body
  29. Fish and other aquatic creatures can live inside a deep frozen pond because
  30. Astigmatism, a structural defect of the eye, is due to