Question

Which No. of pencil draws dark line out of the following?

• A. HB
• B. 2H
• C. H
• D. 2B

Hint:

Remember: \textbf{H} = Hard = Light line. \textbf{B} = Black = Dark line. The higher the number, the more extreme the property (e.g., 6B is darker than 2B; 6H is lighter than 2H).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept
The question asks to identify the pencil grade that produces the darkest line among the given options. This depends on the pencil grading scale.
Step 2: Detailed Explanation
The pencil grading scale indicates the hardness of the graphite core.
H stands for "Hard". Pencils with a higher 'H' number (e.g., 4H, 2H) are harder and produce lighter, finer lines.
B stands for "Black" or "Soft". Pencils with a higher 'B' number (e.g., 4B, 6B) are softer and produce darker, thicker lines.
HB is a medium grade, right in the middle of the scale.
Comparing the options:
- 2H and H are hard pencils for light lines.
- HB is a medium pencil.
- 2B is a soft pencil for dark lines.
Therefore, 2B will draw the darkest line among the choices.
Step 3: Final Answer
The 2B pencil draws the darkest line.