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Medical Entrance MCQ & Objective Questions

Preparing for medical entrance exams is a crucial step for aspiring doctors in India. Mastering MCQs and objective questions can significantly enhance your exam performance. By practicing these questions, you not only familiarize yourself with the exam format but also strengthen your understanding of important concepts and topics essential for scoring better.

What You Will Practise Here

Key concepts in Biology, Chemistry, and Physics relevant to medical entrance.
Important formulas and definitions that frequently appear in exams.
Diagrams and illustrations to help visualize complex processes.
Practice questions based on previous years' medical entrance exams.
Conceptual clarity through detailed explanations of difficult topics.
Strategies for tackling tricky MCQs and objective questions.
Time management techniques for effective exam preparation.

Exam Relevance

Medical entrance topics are integral to various examinations like NEET, JEE, and state board assessments. These subjects often feature MCQs that test your grasp of fundamental concepts and application skills. Common question patterns include multiple-choice questions that assess both theoretical knowledge and practical understanding, making it vital to practice regularly with important Medical Entrance questions for exams.

Common Mistakes Students Make

Overlooking the importance of reading questions carefully, leading to misinterpretation.
Neglecting to revise basic concepts, which can result in confusion during exams.
Relying solely on rote memorization instead of understanding the underlying principles.
Failing to practice time management, which can hinder performance in timed exams.

FAQs

Question: What are Medical Entrance MCQ questions?
Answer: Medical Entrance MCQ questions are multiple-choice questions designed to test your knowledge and understanding of subjects relevant to medical entrance exams.

Question: How can I improve my performance in Medical Entrance objective questions?
Answer: Regular practice of MCQs, understanding key concepts, and reviewing previous years' papers can significantly improve your performance.

Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence as you prepare for your medical entrance exams.

NEET

Q. If a machine does 200 J of work in 5 seconds, what is its power? (2022)

A. 40 W
B. 50 W
C. 20 W
D. 30 W

Solution

Power (P) = Work Done (W) / Time (t) = 200 J / 5 s = 40 W

Correct Answer: B — 50 W

Q. If a machine does 2000 J of work in 5 seconds, what is its power? (2022)

A. 400 W
B. 200 W
C. 100 W
D. 500 W

Solution

Power (P) = Work Done / Time = 2000 J / 5 s = 400 W

Correct Answer: A — 400 W

Q. If a material has a high shear modulus, what does it indicate about the material? (2023)

A. It is very elastic
B. It is very ductile
C. It resists shear deformation
D. It is very brittle

Solution

A high shear modulus indicates that the material resists shear deformation.

Correct Answer: C — It resists shear deformation

Q. If a material has a shear modulus of 80 GPa and a shear stress of 40 MPa is applied, what is the shear strain? (2023)

A. 0.0005
B. 0.005
C. 0.5
D. 0.05

Solution

Shear strain (γ) = Shear stress (τ) / Shear modulus (G) = 40 MPa / 80 GPa = 0.0005.

Correct Answer: A — 0.0005

Q. If a measurement has a relative error of 5%, what does this indicate? (2022)

A. The measurement is very accurate
B. The measurement is very precise
C. The measurement is off by 5% of the true value
D. The measurement is exact

Solution

A relative error of 5% indicates that the measurement is off by 5% of the true value.

Correct Answer: C — The measurement is off by 5% of the true value

Q. If a measurement is accurate but not precise, what does it imply? (2019)

A. All measurements are close to each other
B. Measurements are close to the true value
C. Measurements vary widely
D. None of the above

Solution

Accuracy refers to how close a measurement is to the true value.

Correct Answer: B — Measurements are close to the true value

Q. If a measurement is accurate, it means: (2019)

A. It is close to the true value
B. It is consistent
C. It has a small error
D. It is precise

Solution

Accuracy refers to how close a measured value is to the true value.

Correct Answer: A — It is close to the true value

Q. If a measurement is said to have a precision of 0.01 cm, what does this imply? (2019)

A. The measurement is accurate to 0.01 cm
B. The measurement can vary by 0.01 cm
C. The measurement is exact
D. The measurement is rounded to 0.01 cm

Solution

A precision of 0.01 cm implies that the measurement can vary by this amount, indicating the level of uncertainty.

Correct Answer: B — The measurement can vary by 0.01 cm

Q. If a resistor has a current of 2A flowing through it and a voltage of 10V across it, what is the resistance? (2023)

A. 2Ω
B. 5Ω
C. 10Ω
D. 20Ω

Solution

Using Ohm's Law, R = V / I = 10V / 2A = 5Ω.

Correct Answer: B — 5Ω

Q. If a resistor has a resistance of 10Ω and a current of 2A flows through it, what is the voltage across the resistor? (2023)

A. 5V
B. 10V
C. 20V
D. 30V

Solution

Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: C — 20V

Q. If a resistor has a resistance of 10Ω and a current of 5A flows through it, what is the voltage across the resistor? (2023)

A. 10V
B. 20V
C. 30V
D. 50V

Solution

Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.

Correct Answer: B — 20V

Q. If a resistor has a resistance of 8Ω and the current flowing through it is 4A, what is the power dissipated by the resistor? (2022)

A. 16W
B. 32W
C. 64W
D. 8W

Solution

Power (P) can be calculated using P = I^2 * R = (4A)^2 * 8Ω = 16 * 8 = 128W.

Correct Answer: B — 32W

Q. If a resistor has a resistance of 8Ω and the current flowing through it is 4A, what is the voltage across the resistor? (2022)

A. 32V
B. 16V
C. 8V
D. 4V

Solution

Using Ohm's Law, V = I * R = 4A * 8Ω = 32V.

Correct Answer: B — 16V

Q. If a ruler has a least count of 0.1 cm, what is the maximum error in measurement? (2023)

A. 0.05 cm
B. 0.1 cm
C. 0.2 cm
D. 0.01 cm

Solution

The maximum error is typically taken as the least count of the measuring instrument, which is 0.1 cm.

Correct Answer: B — 0.1 cm

Q. If a ruler has a least count of 0.1 cm, what is the smallest measurement it can accurately provide? (2023)

A. 0.1 cm
B. 0.05 cm
C. 0.01 cm
D. 1 cm

Solution

The least count of a measuring instrument is the smallest value that can be measured accurately, which in this case is 0.1 cm.

Correct Answer: A — 0.1 cm

Q. If a thin film of oil on water produces a green color due to interference, what can be inferred about the thickness of the film? (2023)

A. It is very thick
B. It is very thin
C. It is of variable thickness
D. It is equal to the wavelength of green light

Solution

Thin films produce colors due to interference; a green color indicates a thin film where the thickness is comparable to the wavelength of visible light.

Correct Answer: B — It is very thin

Q. If a torque of 10 Nm is applied to a body with a moment of inertia of 2 kg·m², what is the angular acceleration? (2022)

A. 5 rad/s²
B. 10 rad/s²
C. 2 rad/s²
D. 20 rad/s²

Solution

Using the formula τ = Iα, we have α = τ/I = 10 Nm / 2 kg·m² = 5 rad/s².

Correct Answer: A — 5 rad/s²

Q. If a trait is controlled by multiple alleles, what is this phenomenon called? (2022)

A. Polygenic inheritance
B. Multiple alleles
C. Incomplete dominance
D. Codominance

Solution

When a trait is controlled by multiple alleles, it is referred to as multiple alleles.

Correct Answer: B — Multiple alleles

Q. If a wave has a frequency of 50 Hz and a wavelength of 3 m, what is its speed? (2019)

A. 150 m/s
B. 100 m/s
C. 50 m/s
D. 200 m/s

Solution

Wave speed (v) can be calculated using the formula v = fλ. Here, v = 50 Hz * 3 m = 150 m/s.

Correct Answer: B — 100 m/s

Q. If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (2019)

A. 100 m/s
B. 200 m/s
C. 50 m/s
D. 25 m/s

Solution

The speed of a wave can be calculated using the formula v = f × λ. Here, v = 50 Hz × 4 m = 200 m/s.

Correct Answer: A — 100 m/s

Q. If a wave has a speed of 300 m/s and a frequency of 150 Hz, what is its wavelength? (2023)

A. 1 m
B. 2 m
C. 3 m
D. 4 m

Solution

Using the wave equation v = fλ, we can rearrange it to find λ = v/f. Thus, λ = 300 m/s / 150 Hz = 2 m.

Correct Answer: B — 2 m

Q. If the amplitude of a simple harmonic motion is doubled, what happens to the total energy of the system? (2022)

A. It remains the same
B. It doubles
C. It quadruples
D. It halves

Solution

Total energy (E) in SHM is proportional to the square of the amplitude (A). If A is doubled, E becomes 4A^2, hence it quadruples.

Correct Answer: C — It quadruples

Q. If the amplitude of a wave is increased, what effect does it have on the energy of the wave? (2022)

A. Energy decreases
B. Energy remains the same
C. Energy increases
D. Energy becomes zero

Solution

The energy of a wave is proportional to the square of its amplitude. Therefore, if the amplitude increases, the energy also increases.

Correct Answer: C — Energy increases

Q. If the amplitude of a wave is increased, what effect does it have on the energy carried by the wave? (2019)

A. Energy decreases
B. Energy remains the same
C. Energy increases
D. Energy becomes zero

Solution

The energy carried by a wave is proportional to the square of its amplitude. Therefore, if the amplitude increases, the energy also increases.

Correct Answer: C — Energy increases

Q. If the amplitude of a wave is increased, what happens to its energy? (2019)

A. Decreases
B. Increases
C. Remains the same
D. Becomes zero

Solution

The energy of a wave is proportional to the square of its amplitude. Therefore, if the amplitude increases, the energy also increases.

Correct Answer: B — Increases

Q. If the amplitude of a wave is tripled, what happens to the energy carried by the wave? (2019)

A. It remains the same
B. It doubles
C. It triples
D. It increases by a factor of nine

Solution

The energy carried by a wave is proportional to the square of the amplitude. Therefore, if the amplitude is tripled, the energy increases by a factor of 3^2 = 9.

Correct Answer: D — It increases by a factor of nine

Q. If the angular momentum of a system is conserved, what can be said about the net external torque acting on the system? (2023)

A. It is zero
B. It is constant
C. It is maximum
D. It is minimum

Solution

If angular momentum is conserved, it implies that the net external torque acting on the system is zero.

Correct Answer: A — It is zero

Q. If the capacitance of a capacitor is doubled while keeping the charge constant, what happens to the potential difference across it? (2020)

A. It doubles
B. It halves
C. It remains the same
D. It quadruples

Solution

Capacitance C is defined as C = Q/V. If C is doubled and Q remains constant, then V must halve to maintain the equation.

Correct Answer: B — It halves

Q. If the capacitance of a parallel plate capacitor is C, what will be the capacitance if the distance between the plates is doubled? (2020)

A. C/2
B. C
C. 2C
D. 4C

Solution

The capacitance C of a parallel plate capacitor is given by C = εA/d. If the distance d is doubled, the new capacitance will be C/2.

Correct Answer: A — C/2

Q. If the charge on a capacitor is doubled while keeping the voltage constant, what happens to the capacitance? (2022)

A. It doubles
B. It halves
C. It remains the same
D. It quadruples

Solution

Capacitance C = Q/V. If Q is doubled and V remains constant, C must also double.

Correct Answer: A — It doubles

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