Science (Science) | MCQ Quizzes | Category (R/R/A)
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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
Total Views: 1161
Last Refreshed: 2025-09-17 12:29:52
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. Entomology is the science that studies
Q1. Entomology is the science that studies
Answer: (C) Insects
Answer: (C) Insects
Answer: (C) Insects
Insects
Insects
Insects
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Q2. What is the Distance between the Earth and the Moon?
Q2. 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).
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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. Which of the following Indian Economist won Nobel Prize in Economic Science?
Q4. Which of the following Indian Economist won Nobel Prize in Economic Science?
Answer: (D) Amartya Sen
Answer: (D) Amartya Sen
Answer: (D) Amartya Sen
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
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Q5. Why the sky appears blue?
Q5. 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.
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Q6. Which blood vessel carries blood back to the heart?
Q6. Which blood vessel carries blood back to the heart?
Answer: (C) Vein
Answer: (C) Vein
Answer: (C) Vein
Vein
Vein
Vein
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Q7. The earth makes one complete rotation on it's axis in
Q7. 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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Q8. Which comet does appear after 76 years
Q8. 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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Q9. The center of our solar system is
Q9. 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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Q10. Which are the planets in our solar system which do not have any natural satellite?
Q10. 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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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. Which planet is also referred to a "Dwarf Planet"?
Q12. Which planet is also referred to a "Dwarf Planet"?
Answer: (D) Pluto
Answer: (D) Pluto
Answer: (D) Pluto
Pluto
Pluto
Pluto
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Q13. The moon is an example of which type of object?
Q13. 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.
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Q14. Which Disease is caused due to deficiency of Iron?
Q14. 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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Q15. By how much degrees the earth is inclined on its own Axis?
Q15. By how much degrees the earth is inclined on its own Axis?
Answer: (C) 23.5
Answer: (C) 23.5
Answer: (C) 23.5
23.5
23.5
23.5
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Q16. Study of universe is called
Q16. Study of universe is called
Answer: (A) Cosmology
Answer: (A) Cosmology
Answer: (A) Cosmology
Cosmology
Cosmology
Cosmology
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Q17. Who invented the original Ballpoint Pen?
Q17. Who invented the original Ballpoint Pen?
Answer: (C) John J. Loud
Answer: (C) John J. Loud
Answer: (C) John J. Loud
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
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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. What is the audible range of frequencies for normal human ears?
Q19. 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.
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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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