RTMNU Question Paper Summer 2018 BSc Answers

Understanding the RTMNU Summer 2018 BSc question papers is essential for students preparing for exams. This collection provides detailed questions and answers across all subjects, helping students review concepts and prepare effectively. Organized systematically, it covers diverse topics to build clarity and confidence for examination success.

Physics

Question: Define Newton’s first law of motion.

Answer: Newton’s first law of motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Question: What is the formula for work?

Answer: The formula for work is Work = Force × Displacement × cos(θ), where θ is the angle between force and displacement.

Question: Explain the concept of inertia.

Answer: Inertia is the property of an object to resist changes to its state of motion or rest.

Question: State the principle of conservation of energy.

Answer: The principle of conservation of energy states that energy can neither be created nor destroyed; it can only be transformed from one form to another.

Question: What is the SI unit of force?

Answer: The SI unit of force is the Newton (N).

Question: Define acceleration due to gravity.

Answer: Acceleration due to gravity is the acceleration experienced by an object due to the gravitational force of Earth, approximately 9.8 m/s².

Question: What is Ohm’s law?

Answer: Ohm’s law states that the current through a conductor is directly proportional to the voltage across it, provided the temperature remains constant.

Question: What is the difference between scalar and vector quantities?

Answer: Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.

Question: Define electric potential.

Answer: Electric potential is the work done in moving a unit positive charge from infinity to a point in an electric field.

Question: What is a capacitor?

Answer: A capacitor is an electrical component that stores electrical energy in an electric field.

Question: State the laws of reflection.

Answer: The laws of reflection are:

1. The angle of incidence is equal to the angle of reflection.
2. The incident ray, reflected ray, and normal lie in the same plane.

Question: What is centripetal force?

Answer: Centripetal force is the force that keeps an object moving in a circular path, directed towards the center of the circle.

Question: Explain the term kinetic energy.

Answer: Kinetic energy is the energy possessed by an object due to its motion, given by the formula KE = ½ mv², where m is mass and v is velocity.

Question: What is Hooke’s law?

Answer: Hooke’s law states that the force required to compress or extend a spring is directly proportional to the displacement, F = kx.

Question: What is the principle of superposition?

Answer: The principle of superposition states that when two or more waves overlap, the resultant displacement is the sum of the individual displacements.

Question: Define angular velocity.

Answer: Angular velocity is the rate of change of angular displacement with time, measured in radians per second.

Question: What is the first law of thermodynamics?

Answer: The first law of thermodynamics states that energy cannot be created or destroyed; the total energy of an isolated system is constant.

Question: Define wave-particle duality.

Answer: Wave-particle duality is the concept that particles such as electrons exhibit both wave-like and particle-like behavior.

Question: What is a photon?

Answer: A photon is a quantum of electromagnetic radiation, carrying energy proportional to its frequency.

Question: What is the formula for calculating frequency?

Answer: The formula for frequency is Frequency = Velocity / Wavelength.

Chemistry

Question: What is the periodic table?

Answer: The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Question: Define isotopes.

Answer: Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons.

Question: What is Avogadro’s number?

Answer: Avogadro’s number is the number of particles in one mole of a substance, approximately 6.022 × 10²³.

Question: Explain the law of conservation of mass.

Answer: The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction.

Question: What is the pH scale?

Answer: The pH scale measures the acidity or alkalinity of a solution, ranging from 0 to 14.

Question: What is an ionic bond?

Answer: An ionic bond is a chemical bond formed by the electrostatic attraction between oppositely charged ions.

Question: Define a covalent bond.

Answer: A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.

Question: What is the atomic number?

Answer: The atomic number is the number of protons in the nucleus of an atom.

Question: Define oxidation.

Answer: Oxidation is the loss of electrons by a substance in a chemical reaction.

Question: What is a catalyst?

Answer: A catalyst is a substance that increases the rate of a chemical reaction without being consumed.

Question: What is the difference between endothermic and exothermic reactions?

Answer: Endothermic reactions absorb heat, while exothermic reactions release heat.

Question: Define molarity.

Answer: Molarity is the number of moles of solute per liter of solution.

Question: What is a chemical equilibrium?

Answer: Chemical equilibrium occurs when the forward and reverse reactions in a chemical process proceed at the same rate.

Question: What are noble gases?

Answer: Noble gases are elements in Group 18 of the periodic table, characterized by their stability and lack of reactivity.

Question: What is electrolysis?

Answer: Electrolysis is a chemical process that uses electricity to break down compounds into their components.

Question: What is the difference between homogeneous and heterogeneous mixtures?

Answer: Homogeneous mixtures have a uniform composition, while heterogeneous mixtures have distinct components.

Question: What is the role of enzymes in chemical reactions?

Answer: Enzymes act as biological catalysts, speeding up chemical reactions in living organisms.

Question: Define an alloy.

Answer: An alloy is a mixture of two or more elements, where at least one is a metal, to enhance material properties.

Question: What is the boiling point of water in Celsius?

Answer: The boiling point of water is 100°C at standard atmospheric pressure.

Studying RTMNU Summer 2018 BSc question papers provides a comprehensive understanding of important concepts across subjects. These questions and answers serve as an excellent tool for exam preparation and conceptual clarity. By reviewing diverse topics systematically, students can confidently approach their exams with better preparation and deeper insights.