Science (Science) | MCQ Quizzes | Category (T/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: 53
Total Views: 1156
Last Refreshed: 2025-09-17 01:05:56
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. Who invented the Fountain Pen?
Q1. 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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Q2. Which is responsible for Earth's magnetic field?
Q2. 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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Q3. When is National Science Day celebrated?
Q3. When is National Science Day celebrated?
Answer: (D) 28 February
Answer: (D) 28 February
Answer: (D) 28 February
28 February,
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
28 February,
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
28 February,
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
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Q4. The path of Halley's Comet in its orbit around the sun is
Q4. The path of Halley's Comet in its orbit around the sun is
Answer: (C) Elliptical
Answer: (C) Elliptical
Answer: (C) Elliptical
Elliptical
Elliptical
Elliptical
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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. The center of our solar system is
Q6. The center of our solar system is
Answer: (B) The Sun
Answer: (B) The Sun
Answer: (B) The Sun
The Sun
The Sun
The Sun
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Q7. What vitamin is contained in the Sun light ?
Q7. What vitamin is contained in the Sun light ?
Answer: (D) Vitamin D
Answer: (D) Vitamin D
Answer: (D) Vitamin D
Vitamin D
The body creates vitamin D from direct sunlight on the skin when outdoors. But between October and early March we do not make enough vitamin D from sunlight.
Vitamin D
The body creates vitamin D from direct sunlight on the skin when outdoors. But between October and early March we do not make enough vitamin D from sunlight.
The body creates vitamin D from direct sunlight on the skin when outdoors. But between October and early March we do not make enough vitamin D from sunlight.
Vitamin D
The body creates vitamin D from direct sunlight on the skin when outdoors. But between October and early March we do not make enough vitamin D from sunlight.
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Q8. Exposure to sunlight helps a person improve his health because of
Q8. Exposure to sunlight helps a person improve his health because of
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
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Q9. Which Disease is caused due to deficiency of Iron?
Q9. Which Disease is caused due to deficiency of Iron?
Answer: (D) Anaemia
Answer: (D) Anaemia
Answer: (D) Anaemia
Anemia
Anemia
Anemia
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Q10. What is the outermost layer of the Earth?
Q10. 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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Q11. Which comet does appear after 76 years
Q11. Which comet does appear after 76 years
Answer: (A) Halley's comet
Answer: (A) Halley's comet
Answer: (A) Halley's comet
Halley's Comet
Halley's Comet
Halley's Comet
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Q12. Who invented the modern Ballpoint Pen?
Q12. 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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Q13. Sound waves can't travel through
Q13. Sound waves can't travel through
Answer: (D) Vaccum
Answer: (D) Vaccum
Answer: (D) Vaccum
Sound waves cannot travel in a vacuum. It can travel only through a material medium. e.g., solids, liquids and gases.
Sound waves cannot travel in a vacuum. It can travel only through a material medium. e.g., solids, liquids and gases.
Sound waves cannot travel in a vacuum. It can travel only through a material medium. e.g., solids, liquids and gases.
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Q14. What is the normal temperature of human body?
Q14. 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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Q15. Who invented the Aeroplane?
Q15. 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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Q16. Which planet in our solar system is less dense than water?
Q16. 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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Q17. Who was the first Nobel Prize winner in Physics?
Q17. Who was the first Nobel Prize winner in Physics?
Answer: (A) Wilhelm Rontgen
Answer: (A) Wilhelm Rontgen
Answer: (A) Wilhelm Rontgen
Wilhelm Conrad Rontgen
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
Wilhelm Conrad Rontgen
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
Wilhelm Conrad Rontgen
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
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Q18. Which among the following elements is a liquid at room temperature?
Q18. Which among the following elements is a liquid at room temperature?
Answer: (A) Mercury
Answer: (A) Mercury
Answer: (A) Mercury
Mercury
Mercury
Mercury
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Q19. Which among the following Vitamin is also known as Tocoferol?
Q19. 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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Q20. Identify the normally radioactive material in the following list.
Q20. Identify the normally radioactive material in the following list.
Answer: (A) Plutonium
Answer: (A) Plutonium
Answer: (A) Plutonium
Plutonium is the only radioactive element in the list.
Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
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