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NEET Biology Plant Growth and Development / पौधे की वृद्धि और विकास Question Bank Growth

  • question_answer
    Which of the following instrument can be used to record plant growth by seconds i.e. in fraction of a minute [RPMT 1991]

    A) Arc auxanometer

    B) Arc indicator

    C) Space marker disc

    D) Crescograph

    Correct Answer: D

    Solution :

    Crescograph is a sensitive devise, devised by J.C. Bose. It records primary growth very accurately. It magnifies growth upto 10,000 times giving information of growth per second.


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