Science (Science) | MCQ Quizzes | Category (L/R/M)
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Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world.
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Category UID: 9
Label UID: 33
Category Name: Science
Category Full Name: Science
Category Link/Slug: science
Total Quizzes: 59
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Last Refreshed: 2026-11-05 03:56:08
Category Description: Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world. Modern science is typically divided into three major branches: natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences (e.g., logic, mathematics, and theoretical computer science), which study formal systems, governed by axioms and rules.
Q1. The science dealing with X-rays and other high-energy radiation, especially for the diagnosis and treatment of disease.
Q1. The science dealing with X-rays and other high-energy radiation, especially for the diagnosis and treatment of disease.
What is one word substitution of the phrase?
What is one word substitution of the phrase?
What is one word substitution of the phrase?
Answer: (D) radiology
Answer: (D) radiology
Answer: (D) radiology
Substitute Word: radiology.
Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
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Q2. The earth makes one complete rotation on it's axis in
Q2. The earth makes one complete rotation on it's axis in
Answer: (C) 23 hours 56 minutes
Answer: (C) 23 hours 56 minutes
Answer: (C) 23 hours 56 minutes
23 hours 56 minutes
23 hours 56 minutes
23 hours 56 minutes
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Q3. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Q3. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Answer: (D) Astronomy
Answer: (D) Astronomy
Answer: (D) Astronomy
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
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Q4. Who invented the modern Ballpoint Pen?
Q4. Who invented the modern Ballpoint Pen?
Answer: (A) Biro Brothers
Answer: (A) Biro Brothers
Answer: (A) Biro Brothers
Biro Brothers
Biro Brothers
Biro Brothers
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Q5. Which of the following do not belong to Solar System?
Q5. Which of the following do not belong to Solar System?
Planet, Nebulae, Astroid and Comet
Planet, Nebulae, Astroid and Comet
Planet, Nebulae, Astroid and Comet
Answer: (B) Nebulae
Answer: (B) Nebulae
Answer: (B) Nebulae
Nebulae
Nebulae
Nebulae
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Q6. Which among the following Vitamin is also known as Tocoferol?
Q6. Which among the following Vitamin is also known as Tocoferol?
Answer: (A) Vitamin E
Answer: (A) Vitamin E
Answer: (A) Vitamin E
Vitamin E
Vitamin E
Vitamin E
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Q7. Who invented the Fountain Pen?
Q7. Who invented the Fountain Pen?
Answer: (D) Petrache Poenaru
Answer: (D) Petrache Poenaru
Answer: (D) Petrache Poenaru
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
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Q8. Which one of the following is not a member of outer planets
Q8. Which one of the following is not a member of outer planets
Answer: (B) Mars
Answer: (B) Mars
Answer: (B) Mars
Mars
Mars
Mars
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Q9. How many times the Jupiter is bigger than the Earth by diameter?
Q9. How many times the Jupiter is bigger than the Earth by diameter?
Answer: (D) 11
Answer: (D) 11
Answer: (D) 11
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
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Q10. Which planet in our solar system is less dense than water?
Q10. Which planet in our solar system is less dense than water?
Answer: (D) Saturn
Answer: (D) Saturn
Answer: (D) Saturn
Saturn
Saturn
Saturn
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Q11. Who invented the Aeroplane?
Q11. Who invented the Aeroplane?
Answer: (D) Orville Wright and Wilbur Wright
Answer: (D) Orville Wright and Wilbur Wright
Answer: (D) Orville Wright and Wilbur Wright
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
Wright Brothers invented the Aeroplane in the year 1903.
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
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Q12. What is the outermost layer of the Earth?
Q12. What is the outermost layer of the Earth?
Answer: (C) Crust
Answer: (C) Crust
Answer: (C) Crust
Crust
The structure of the Earth is divided into four major concentric layers: inner core, outer core, mantle and crust (the outermost layer). The crust is made up of tectonic plates, which are in constant motion.
Crust The structure of the Earth is divided into four major concentric layers: inner core, outer core, mantle and crust (the outermost layer). The crust is made up of tectonic plates, which are in constant motion.
Crust The structure of the Earth is divided into four major concentric layers: inner core, outer core, mantle and crust (the outermost layer). The crust is made up of tectonic plates, which are in constant motion.
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Q13. The science or philosophy of law?
Q13. The science or philosophy of law?
What is one word substitution of the phrase?
What is one word substitution of the phrase?
What is one word substitution of the phrase?
Answer: (C) jurisprudence
Answer: (C) jurisprudence
Answer: (C) jurisprudence
Substitute Word: jurisprudence.
Substitute Word: jurisprudence.
Substitute Word: jurisprudence.
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Q14. who discovered gravity?
Q14. who discovered gravity?
Answer: (D) Isaac Newton
Answer: (D) Isaac Newton
Answer: (D) Isaac Newton
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
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Q15. Study of universe is called
Q15. Study of universe is called
Answer: (A) Cosmology
Answer: (A) Cosmology
Answer: (A) Cosmology
Cosmology
Cosmology
Cosmology
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Q16. Which are the planets in our solar system which do not have any natural satellite?
Q16. Which are the planets in our solar system which do not have any natural satellite?
Answer: (D) Mercury and Venus
Answer: (D) Mercury and Venus
Answer: (D) Mercury and Venus
Mercury and Venus
Mercury and Venus
Mercury and Venus
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Q17. What is the normal temperature of human body?
Q17. What is the normal temperature of human body?
Answer: (A) 37°C
Answer: (A) 37°C
Answer: (A) 37°C
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
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Q18. The period of one revolution of the Sun around the center of galaxy is called?
Q18. The period of one revolution of the Sun around the center of galaxy is called?
Answer: (D) Cosmic Year
Answer: (D) Cosmic Year
Answer: (D) Cosmic Year
The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is approximately 230 million Earth years.
The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is approximately 230 million Earth years.
The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is approximately 230 million Earth years.
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Q19. The speed of light is maximum in
Q19. The speed of light is maximum in
Answer: (D) Vaccum
Answer: (D) Vaccum
Answer: (D) Vaccum
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
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Q20. Which is responsible for Earth's magnetic field?
Q20. Which is responsible for Earth's magnetic field?
Answer: (B) Outer Core
Answer: (B) Outer Core
Answer: (B) Outer Core
Outer Core
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Outer Core The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Outer Core The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
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