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The best material for solar cell among the following is

AGe

BCdSe

CGaAF

DCdS

Answer:

B. CdSe


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The resistance of a conductor is directly proportional to?
സി.വി. രാമൻ നോബൽ സമ്മാനം നേടിയ വർഷം :

Which of the following statements is/are correct for a current-carrying solenoid?

  1. (i) It can be used to magnetize a piece of soft iron.
  2. (ii) It acts like a bar magnet.
  3. (iii) The field lines are concentric circles
    Which type of wall is present in the closed system?
    Water drops shine on a lotus leaf due to?