Question
An instrument used for measuring growth in plants is known as a:
This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
crescograph
Instrument for Measuring Plant Growth
The question asks to identify the instrument used specifically for measuring the growth of plants.
Analyzing Instrument Functions
- Chronometer: This instrument is designed to measure time accurately. It is not related to measuring biological growth.
- Bolometer: A bolometer is used to measure the power of electromagnetic radiation, like heat or infrared radiation. It does not measure plant growth.
- Cardiograph: This device records the electrical activity of the heart (cardiogram). It is used in medical contexts, not for plant physiology.
- Crescograph: A crescograph is a specialized scientific instrument used to measure and record plant growth, often the rate of elongation of shoots or roots.
Conclusion
Based on the functions of the given instruments, the crescograph is the correct instrument for measuring plant growth.
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