10th Public Question Paper 2023 key questions answers

The 10th public question paper is crucial for students preparing for the board exams. It covers essential topics across subjects like Mathematics, Science, Social Science, and Languages. This guide provides key questions and answers to help students understand the pattern and prepare effectively for the examination.

Mathematics

Question: What is the value of x if 5x + 3 = 23?
Answer: x = 4

Question: Simplify (2x + 3)(x – 4).
Answer: 2x² – 5x – 12

Question: Find the LCM of 12 and 18.
Answer: 36

Question: What is the area of a circle with radius 7 cm?
Answer: 154 cm²

Question: Solve for y: 2y – 7 = 15.
Answer: y = 11

Question: Write the first four terms of the arithmetic sequence with a = 3 and d = 5.
Answer: 3, 8, 13, 18

Question: Find the square root of 144.
Answer: 12

Question: What is the value of sin 30°?
Answer: 0.5

Question: Calculate the perimeter of a rectangle with length 12 cm and breadth 8 cm.
Answer: 40 cm

Question: If x² + 6x + 9 = 0, find the value of x.
Answer: x = -3

Question: Find the mode of the data set: 2, 3, 3, 5, 7, 8, 3.
Answer: 3

Question: Write the formula for the volume of a cone.
Answer: (1/3)πr²h

Question: If a triangle has sides 3 cm, 4 cm, and 5 cm, find its area.
Answer: 6 cm²

Question: Expand (a + b)².
Answer: a² + 2ab + b²

Question: Solve: 4x = 64.
Answer: x = 16

Question: What is the probability of getting a head when tossing a coin?
Answer: 1/2

Question: Find the slope of the line passing through (2, 3) and (4, 7).
Answer: 2

Question: Calculate the compound interest on ₹10,000 at 5% per annum for 2 years.
Answer: ₹1,025

Question: Write the formula for the area of a parallelogram.
Answer: Base × Height

Question: If the sum of angles in a triangle is 180°, find the third angle if two angles are 50° and 60°.
Answer: 70°

Science

Question: What is the chemical formula of water?
Answer: H₂O

Question: Name the process by which plants make food.
Answer: Photosynthesis

Question: What is the unit of electric current?
Answer: Ampere

Question: Define Newton’s second law of motion.
Answer: Force = Mass × Acceleration

Question: What is the function of the nucleus in a cell?
Answer: It controls cell activities.

Question: What is the pH of a neutral solution?
Answer: 7

Question: Name the gas responsible for global warming.
Answer: Carbon dioxide

Question: What is the formula for calculating speed?
Answer: Speed = Distance ÷ Time

Question: What are the three states of matter?
Answer: Solid, liquid, and gas

Question: Name the part of the human eye that controls the amount of light entering.
Answer: Pupil

Question: What is the function of chloroplasts?
Answer: They carry out photosynthesis.

Question: What is the SI unit of energy?
Answer: Joule

Question: Define refraction of light.
Answer: The bending of light as it passes from one medium to another.

Question: What is the main component of natural gas?
Answer: Methane

Question: What is the role of hemoglobin in the blood?
Answer: It transports oxygen.

Question: Name the process of converting a liquid into a gas.
Answer: Evaporation

Question: What is the chemical formula for sodium chloride?
Answer: NaCl

Question: Define exothermic reaction.
Answer: A reaction that releases heat.

Question: What is the basic unit of life?
Answer: The cell

Question: Name the device used to measure temperature.
Answer: Thermometer

Social Science

Question: What is the capital of India?
Answer: New Delhi

Question: Who is known as the Father of the Nation in India?
Answer: Mahatma Gandhi

Question: Define democracy.
Answer: Government by the people, for the people, and of the people.

Question: What is the main source of income for the Indian government?
Answer: Taxes

Question: What is the significance of the Indian Constitution?
Answer: It is the supreme law of India.

Question: Name the river known as the “Sorrow of Bengal.”
Answer: Damodar River

Question: Who wrote the book “Discovery of India”?
Answer: Jawaharlal Nehru

Question: What is the role of the Election Commission in India?
Answer: It conducts free and fair elections.

Question: Define globalization.
Answer: Integration of economies worldwide.

Question: What is the currency of Japan?
Answer: Yen

Question: What is the function of the judiciary in India?
Answer: To interpret and uphold the law.

Question: Name the founder of the Mughal Empire in India.
Answer: Babur

Question: What is the main occupation in rural India?
Answer: Agriculture

Question: Name the longest river in the world.
Answer: The Nile

Question: Who was the first President of India?
Answer: Dr. Rajendra Prasad

Question: What is the importance of the Green Revolution?
Answer: It increased agricultural productivity.

Question: What is the official language of the United Nations?
Answer: English and French

Question: What is the difference between weather and climate?
Answer: Weather is short-term; climate is long-term.

Question: What is the function of the Reserve Bank of India?
Answer: It regulates the banking system.

Question: Name the country known as the “Land of the Rising Sun.”
Answer: Japan

Languages

Question: Write the antonym of “happy.”
Answer: Sad

Question: Define a noun.
Answer: A word used to name a person, place, or thing.

Question: What is a synonym for “beautiful”?
Answer: Attractive

Question: What is the past tense of “go”?
Answer: Went

Question: Define a verb.
Answer: An action or state of being.

Question: Write a sentence using the word “friendship.”
Answer: Friendship is a bond of trust and love.

Question: What is the plural form of “child”?
Answer: Children

Question: Define a preposition.
Answer: A word that shows the relationship between a noun and another word.

Question: Write an example of a simile.
Answer: As brave as a lion.

Question: What is the superlative form of “good”?
Answer: Best

Question: Write a sentence using the past continuous tense.
Answer: She was reading a book when I arrived.

Question: What is the opposite of “hot”?
Answer: Cold

Question: Define an adjective.
Answer: A word that describes a noun.

Question: What is a conjunction?
Answer: A word that connects phrases or clauses.

Question: Write a sentence using “and.”
Answer: I like apples and oranges.

Question: What is the synonym for “intelligent”?
Answer: Smart

Question: Write an example of an interrogative sentence.
Answer: What is your name?

Question: What is the meaning of the idiom “break the ice”?
Answer: To start a conversation.

Question: Write a sentence using “because.”
Answer: I stayed home because it was raining.

Question: What is the comparative form of “fast”?
Answer: Faster

The 10th public question paper 2023 is a key resource for exam preparation. Understanding the types of questions asked across subjects enables students to excel. Focused preparation with these questions and answers ensures clarity and confidence for students aiming to perform well in their board exams.