(CUSAT_102) CUCET Medical Practice Exam
1. Which equation correctly describes the displacement of an object under constant
acceleration?
Options:
A. s = ut + ½at²
B. s = u² + 2as
C. s = (u + v)/t
D. s = at²
Answer: A
Explanation: The correct kinematic equation for displacement under constant acceleration is s =
ut + ½at², where u is initial velocity, a is acceleration, and t is time.
2. What does Newton’s first law of motion state?
Options:
A. Force equals mass times acceleration.
B. Every action has an equal and opposite reaction.
C. An object at rest stays at rest unless acted upon by an unbalanced force.
D. The rate of change of momentum is proportional to the applied force.
Answer: C
Explanation: Newton’s first law (inertia) states that an object remains at rest or in uniform
motion unless acted upon by an external unbalanced force.
3. Which quantity is defined as the rate at which work is done?
Options:
A. Energy
B. Power
C. Force
D. Momentum
Answer: B
Explanation: Power is defined as the rate at which work is done or energy is transferred,
measured in watts.
4. According to the universal law of gravitation, the force between two masses is directly
proportional to what?
Options:
A. The sum of their masses
B. The difference in their masses
C. The product of their masses
D. The square of the distance between them
Answer: C
Explanation: Newton’s law of gravitation states that the force is directly proportional to the
product of the two masses and inversely proportional to the square of the distance between them.
,5. Which of the following represents the zeroth law of thermodynamics?
Options:
A. Energy cannot be created or destroyed.
B. Heat flows from hotter to colder bodies.
C. If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium
with each other.
D. The entropy of the universe always increases.
Answer: C
Explanation: The zeroth law establishes the concept of temperature and thermal equilibrium
among systems.
6. What type of heat transfer occurs through a solid without the movement of the material
itself?
Options:
A. Convection
B. Conduction
C. Radiation
D. Evaporation
Answer: B
Explanation: Conduction is the process of heat transfer through a material without any bulk
movement of the matter.
7. In a circuit, which law relates voltage, current, and resistance?
Options:
A. Faraday’s law
B. Lenz’s law
C. Ohm’s law
D. Coulomb’s law
Answer: C
Explanation: Ohm’s law states that the current through a conductor between two points is
directly proportional to the voltage across the two points and inversely proportional to the
resistance.
8. What does Coulomb’s law describe?
Options:
A. The force between moving charges
B. The force between stationary charges
C. The magnetic field around a current-carrying conductor
D. The induced current in a closed loop
Answer: B
Explanation: Coulomb’s law gives the force between two stationary point charges, depending on
their magnitude and separation distance.
9. Which phenomenon explains the bending of light when it passes from one medium to
another?
Options:
,A. Reflection
B. Diffraction
C. Refraction
D. Interference
Answer: C
Explanation: Refraction is the change in direction of light due to a change in its speed as it passes
from one medium to another.
10. In the photoelectric effect, which particle is ejected from a material when it absorbs
light?
Options:
A. Proton
B. Neutron
C. Electron
D. Photon
Answer: C
Explanation: The photoelectric effect involves the ejection of electrons from a material when it is
exposed to light of sufficient frequency.
11. Which principle is used to explain the dual nature of matter and radiation?
Options:
A. Uncertainty principle
B. Pauli exclusion principle
C. Wave-particle duality
D. Principle of superposition
Answer: C
Explanation: Wave-particle duality states that particles such as electrons and photons exhibit
both wave-like and particle-like properties.
12. What is the unit of measurement for gravitational potential energy?
Options:
A. Joule
B. Newton
C. Watt
D. Pascal
Answer: A
Explanation: Gravitational potential energy is measured in joules (J), which is the SI unit of
energy.
13. Which law of thermodynamics introduces the concept of entropy?
Options:
A. Zeroth law
B. First law
C. Second law
D. Third law
Answer: C
, Explanation: The second law of thermodynamics introduces the concept of entropy, stating that
entropy in an isolated system always increases.
14. What is the significance of Faraday’s law in electromagnetism?
Options:
A. It describes the force between current-carrying wires.
B. It explains how a changing magnetic field induces an electric current.
C. It states that the electric field is conservative.
D. It explains the photoelectric effect.
Answer: B
Explanation: Faraday’s law of electromagnetic induction states that a changing magnetic field
can induce an electromotive force (EMF) in a circuit.
15. In optics, what is the law that states the angle of incidence equals the angle of
reflection?
Options:
A. Snell’s law
B. Huygens’ principle
C. Law of reflection
D. Law of refraction
Answer: C
Explanation: The law of reflection states that the angle of incidence is equal to the angle of
reflection.
16. Which phenomenon occurs when light waves pass through a narrow aperture and
spread out?
Options:
A. Reflection
B. Refraction
C. Diffraction
D. Polarization
Answer: C
Explanation: Diffraction is the bending and spreading of waves when they pass through a narrow
opening or around obstacles.
17. In mechanics, what is defined as the rate of change of velocity?
Options:
A. Displacement
B. Speed
C. Acceleration
D. Momentum
Answer: C
Explanation: Acceleration is defined as the rate at which velocity changes with time.
18. Which of the following best explains the concept of inertia?
Options:
1. Which equation correctly describes the displacement of an object under constant
acceleration?
Options:
A. s = ut + ½at²
B. s = u² + 2as
C. s = (u + v)/t
D. s = at²
Answer: A
Explanation: The correct kinematic equation for displacement under constant acceleration is s =
ut + ½at², where u is initial velocity, a is acceleration, and t is time.
2. What does Newton’s first law of motion state?
Options:
A. Force equals mass times acceleration.
B. Every action has an equal and opposite reaction.
C. An object at rest stays at rest unless acted upon by an unbalanced force.
D. The rate of change of momentum is proportional to the applied force.
Answer: C
Explanation: Newton’s first law (inertia) states that an object remains at rest or in uniform
motion unless acted upon by an external unbalanced force.
3. Which quantity is defined as the rate at which work is done?
Options:
A. Energy
B. Power
C. Force
D. Momentum
Answer: B
Explanation: Power is defined as the rate at which work is done or energy is transferred,
measured in watts.
4. According to the universal law of gravitation, the force between two masses is directly
proportional to what?
Options:
A. The sum of their masses
B. The difference in their masses
C. The product of their masses
D. The square of the distance between them
Answer: C
Explanation: Newton’s law of gravitation states that the force is directly proportional to the
product of the two masses and inversely proportional to the square of the distance between them.
,5. Which of the following represents the zeroth law of thermodynamics?
Options:
A. Energy cannot be created or destroyed.
B. Heat flows from hotter to colder bodies.
C. If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium
with each other.
D. The entropy of the universe always increases.
Answer: C
Explanation: The zeroth law establishes the concept of temperature and thermal equilibrium
among systems.
6. What type of heat transfer occurs through a solid without the movement of the material
itself?
Options:
A. Convection
B. Conduction
C. Radiation
D. Evaporation
Answer: B
Explanation: Conduction is the process of heat transfer through a material without any bulk
movement of the matter.
7. In a circuit, which law relates voltage, current, and resistance?
Options:
A. Faraday’s law
B. Lenz’s law
C. Ohm’s law
D. Coulomb’s law
Answer: C
Explanation: Ohm’s law states that the current through a conductor between two points is
directly proportional to the voltage across the two points and inversely proportional to the
resistance.
8. What does Coulomb’s law describe?
Options:
A. The force between moving charges
B. The force between stationary charges
C. The magnetic field around a current-carrying conductor
D. The induced current in a closed loop
Answer: B
Explanation: Coulomb’s law gives the force between two stationary point charges, depending on
their magnitude and separation distance.
9. Which phenomenon explains the bending of light when it passes from one medium to
another?
Options:
,A. Reflection
B. Diffraction
C. Refraction
D. Interference
Answer: C
Explanation: Refraction is the change in direction of light due to a change in its speed as it passes
from one medium to another.
10. In the photoelectric effect, which particle is ejected from a material when it absorbs
light?
Options:
A. Proton
B. Neutron
C. Electron
D. Photon
Answer: C
Explanation: The photoelectric effect involves the ejection of electrons from a material when it is
exposed to light of sufficient frequency.
11. Which principle is used to explain the dual nature of matter and radiation?
Options:
A. Uncertainty principle
B. Pauli exclusion principle
C. Wave-particle duality
D. Principle of superposition
Answer: C
Explanation: Wave-particle duality states that particles such as electrons and photons exhibit
both wave-like and particle-like properties.
12. What is the unit of measurement for gravitational potential energy?
Options:
A. Joule
B. Newton
C. Watt
D. Pascal
Answer: A
Explanation: Gravitational potential energy is measured in joules (J), which is the SI unit of
energy.
13. Which law of thermodynamics introduces the concept of entropy?
Options:
A. Zeroth law
B. First law
C. Second law
D. Third law
Answer: C
, Explanation: The second law of thermodynamics introduces the concept of entropy, stating that
entropy in an isolated system always increases.
14. What is the significance of Faraday’s law in electromagnetism?
Options:
A. It describes the force between current-carrying wires.
B. It explains how a changing magnetic field induces an electric current.
C. It states that the electric field is conservative.
D. It explains the photoelectric effect.
Answer: B
Explanation: Faraday’s law of electromagnetic induction states that a changing magnetic field
can induce an electromotive force (EMF) in a circuit.
15. In optics, what is the law that states the angle of incidence equals the angle of
reflection?
Options:
A. Snell’s law
B. Huygens’ principle
C. Law of reflection
D. Law of refraction
Answer: C
Explanation: The law of reflection states that the angle of incidence is equal to the angle of
reflection.
16. Which phenomenon occurs when light waves pass through a narrow aperture and
spread out?
Options:
A. Reflection
B. Refraction
C. Diffraction
D. Polarization
Answer: C
Explanation: Diffraction is the bending and spreading of waves when they pass through a narrow
opening or around obstacles.
17. In mechanics, what is defined as the rate of change of velocity?
Options:
A. Displacement
B. Speed
C. Acceleration
D. Momentum
Answer: C
Explanation: Acceleration is defined as the rate at which velocity changes with time.
18. Which of the following best explains the concept of inertia?
Options:
