Science (Science) | MCQ Quizzes | Category (R/R/A)
@9
•59 quizzes
•2274 views
•2026-06-20 18:59:35
•
Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world.
Test your Knowledge
Category UID: 9
Label UID: 33
Category Name: Science
Category Full Name: Science
Category Link/Slug: science
Total Quizzes: 53
Total Views: 2274
Last Refreshed: 2026-06-20 18:59:35
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. Which is responsible for Earth's magnetic field?
Q1. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q2. Identify the normally radioactive material in the following list.
Q2. 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
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q3. Which are the planets in our solar system which do not have any natural satellite?
Q3. 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
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q4. Study of universe is called
Q4. Study of universe is called
Answer: (A) Cosmology
Answer: (A) Cosmology
Answer: (A) Cosmology
Cosmology
Cosmology
Cosmology
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q5. Who was the first Nobel Prize winner in Physics?
Q5. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q6. Which planet is also referred to a "Dwarf Planet"?
Q6. Which planet is also referred to a "Dwarf Planet"?
Answer: (D) Pluto
Answer: (D) Pluto
Answer: (D) Pluto
Pluto
Pluto
Pluto
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q7. The moon is an example of which type of object?
Q7. The moon is an example of which type of object?
Answer: (D) Non Luminous
Answer: (D) Non Luminous
Answer: (D) Non Luminous
Non Luminous
Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
Non Luminous Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
Non Luminous Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q8. What is the lower fixed point of fahrenheit scale?
Q8. What is the lower fixed point of fahrenheit scale?
Answer: (B) 32°F
Answer: (B) 32°F
Answer: (B) 32°F
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q9. The science or philosophy of law?
Q9. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q10. Who discovered the Rings of Saturn?
Q10. Who discovered the Rings of Saturn?
Answer: (C) Galileo Galilei
Answer: (C) Galileo Galilei
Answer: (C) Galileo Galilei
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q11. When is National Science Day celebrated?
Q11. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q12. Which comet does appear after 76 years
Q12. 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
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q13. What vitamin is contained in the Sun light ?
Q13. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q14. Exposure to sunlight helps a person improve his health because of
Q14. 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
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q15. Why the sky appears blue?
Q15. Why the sky appears blue?
Answer: (C) Dispersion of light
Answer: (C) Dispersion of light
Answer: (C) Dispersion of light
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q16. What is the audible range of frequencies for normal human ears?
Q16. What is the audible range of frequencies for normal human ears?
Answer: (B) 20 Hz to 20,000 Hz
Answer: (B) 20 Hz to 20,000 Hz
Answer: (B) 20 Hz to 20,000 Hz
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q17. What is the Distance between the Earth and the Moon?
Q17. What is the Distance between the Earth and the Moon?
Answer: (C) 384,400 KM
Answer: (C) 384,400 KM
Answer: (C) 384,400 KM
384,400 KM.
The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly.
The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
384,400 KM. The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly. The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
384,400 KM. The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly. The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q18. Who invented the Fountain Pen?
Q18. 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.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q19. Indian Institute of science is situated at-
Q19. Indian Institute of science is situated at-
Answer: (B) Bangalore
Answer: (B) Bangalore
Answer: (B) Bangalore
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help
Q20. The path of Halley's Comet in its orbit around the sun is
Q20. 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
*** Choose the correct option to show answer. (Choose the correct option to show answer.) Need help