Chronometer la an instrument to measure

A. heat

B. electric potential

C. time

D. distance between two points

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  1. The tiniest of the stars belong to the group known as
  2. One finds it more difficult to walk on ice than on a concrete road because
  3. The completely dark portion of a shadow of an object is known as
  4. Which mirror is used as a rear view mirror in Vehicles?
  5. The radius of an atom is approximately
  6. A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left…
  7. A spherical mirror is
  8. What la the minimum velocity required for a rocket to overcome earth's gravity and travel into space?
  9. The following are the atmospheric zones above the surface of the earth:A) Troposphere B) IonosphereC)…
  10. The electron has a mass equal to
  11. The heat produced in a conductor due to the passage of a current through it is proportional to
  12. Sound waves
  13. The planet that spins Caster than any other planet is
  14. Resistance is measured in
  15. A star contains
  16. Diamond shines because of its
  17. A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift…
  18. The fact that two large ships travelling on close parallel courses in the same direction tend to move…
  19. Astigmatism, a structural defect of the eye, is due to
  20. Echoes are produced by
  21. Halley's comet appears in the heavens once in
  22. The maximum range of most TV signals is from 121 to 240 km only because
  23. Some persons are not able to see distant objects clearly because the image of the object is focused…
  24. A hydrogen bomb is based on
  25. At temperature near OK, (zero kelvin) metals such as lead and tin become
  26. In a dynamo
  27. When light travels from one medium to another there is a change in its
  28. A heavenly body similar in nature to the sun intensely hot glowing mass that produces its energy by…
  29. Drinks kept in a vacuum flask remain hot or cold as the case may be for a long time because
  30. The speed of sound in air at 0° C is approximately