Analytical
1. Complete the following numeric series: 4, 9, 19, 39, ____
- 75
- 89
- 81
- 79
Answer and explanation
D. 79
The rule for the series is to multiply the current number by 2 and add 1: (4*2)+1=9, (9*2)+1=19, (19*2)+1=39, (39*2)+1=79.
COMSATS Pre‑Medical Mock Test
Pre-Medical practice for COMSATS University applicants.
- English
- Analytical
- Quantitative
- Physics
- Chemistry
- Biology
- Questions
- 90 questions
- Duration
- 120 minutes
Free. No signup required.
More mock tests (sign-in required)Try the NAT mockQuestions by subject
- English
- 20
- Analytical
- 20
- Quantitative
- 20
- Physics
- 8
- Chemistry
- 8
- Biology
- 14
Sample questions with answers
Try these sample questions with worked explanations.
Biology
2. Which nerve cells carry signals from sensory receptors toward the central nervous system?
- Efferent neurons
- Interneurons
- Afferent neurons
- Motor neurons
Answer and explanation
C. Afferent neurons
Afferent neurons, also known as sensory neurons, transmit impulses from the receptors to the central nervous system.
Physics
3. Which characteristic of matter is demonstrated by the diffraction of electrons in the Davisson-Germer experiment?
- Particle-like nature
- Wave-like nature
- Linear momentum
- Quantum jump
Answer and explanation
B. Wave-like nature
The Davisson-Germer experiment showed that electrons, previously thought to be particles, exhibit diffraction—a wave property—when reflected from a nickel crystal.
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