Question

Match the instruments given in Column I with the type of growth measured by them given in Column II:

Column I (Instrument)	Column II (Type of growth)
(A) Horizontal microscope	(I) Records primary growth
(B) Auxanometer	(II) measure growth in crop plants
(C) Crescograph	(III) linear growth of shoot

Choose the correct answer form the following option

• A. A-II, B-III, C-I
• B. A-III, B-II, C-I
• C. A-II, B-I, C-III
• D. A-I, B-III, C-II

Hint:

Horizontal microscope is for crop plants, auxanometer for linear shoot growth, crescograph for primary growth.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
Different instruments are used to measure different kinds of plant growth.

Step 2: Matching
A - II: the horizontal microscope is a simple direct method used for measuring growth of crop plants.
B - III: the auxanometer records the increase in length, the linear growth of a shoot.
C - I: the crescograph, designed by J. C. Bose, magnifies small growth many thousand times and records primary growth.

Step 3: Choose the option
The pairs A-II, B-III, C-I match option (A).

Final Answer:
The correct matching is A-II, B-III, C-I, option (A). \[ \boxed{\text{(A) }\text{A-II, B-III, C-I}} \]