1. Q101 The resistance of a conductor does not depend on its
  2. Q102 Deduce the expression for the electrical energy spent in flow of current through a conductor.
  3. Q103 What is the unit to measure sound intensity?
  4. Q104 Two coils A and B are placed close to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give a reason.
  5. Q105 Give two examples of autotrophs. Why do you call them so?
  6. Q106 Give any two examples of water pollutants.
  7. Q107 Name the carboxylic acids found in lemon.
  8. Q108 A teacher obtains a distinct image of a distant tree on a screen with the help of a convex lens and then asks her four students A, B, C, D to describe nature and size of image. Correct answer was given by (a) A (b) B (c) C (d) D
  9. Q109 The number of atoms in 1 mole of oxygen molecule.
  10. Q110 When a gun is fired it exerts a forward force on the bullet and the bullet exerts an equal opposite backward force on the gun. Why? Explain the law which is applicable in this case.