NEET Questions Solved


(1)

 Heat generated by the kettle = VIt = 250×4.2×tHeat required  = msT=1000×4.2×(100-20)250×4.2×t=1000×4.2×(100-20)t=320Sec.

Difficulty Level:

  • 40%
  • 26%
  • 25%
  • 11%