Waec Model Questions Vol1 2020 Biology Question 35

Practice objective / multiple choice question 35 from the 2020 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2020 Biology Objective / Multiple Choice Medium Difficulty
Question 35 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

In a simple reaction‑time test a stimulus light is 0.5 m away from the subject's hand. The average recorded reaction time is 0.25 s. If the nerve impulse travels from the brain to the hand at 120 m s⁻¹, calculate (a) the time taken for the impulse to travel the 0.5 m distance, and (b) the remaining time that must be due to decision making and muscle contraction.

Answer Options

A. Impulse travel time ≈ 0.0021 s; remaining time ≈ 0.248 s
B. Impulse travel time ≈ 0.004 s; remaining time ≈ 0.246 s
Correct Answer C. Impulse travel time ≈ 0.0042 s; remaining time ≈ 0.246 s
D. Impulse travel time ≈ 0.0083 s; remaining time ≈ 0.242 s
Correct Answer
C
Correct Option:
Impulse travel time ≈ 0.0042 s; remaining time ≈ 0.246 s

About This Question

This is Waec Model Questions Vol1 2020 Biology Question 35. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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