Q1. Identify the normally radioactive material in the following list. Q1. Identify the normally radioactive material in the following list.
(A) Plutonium (A) Plutonium
(B) Germanium (B) Germanium
(C) Osmium (C) Osmium
(D) Cadmium (D) Cadmium
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 radioactivityPlutonium 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
Q2. The science concerned with the properties of sound. Q2. The science concerned with the properties of sound.
What is one word substitution of the phrase?
What is one word substitution of the phrase?
(A) Acrobatics (A) Acrobatics
(B) Acoustics (B) Acoustics
(C) Geology (C) Geology
(D) Pedagogy (D) Pedagogy
Answer: (B) Acoustics Answer: (B) Acoustics
Substitute Word: Acoustics.
Acoustics deals with the generation, propagation, reception, and control of sound waves.Substitute Word: Acoustics.
Acoustics deals with the generation, propagation, reception, and control of sound waves.
Q3. Who was the first woman to win the Nobel Prize in Physics? Q3. Who was the first woman to win the Nobel Prize in Physics?
(A) Marie Curie (A) Marie Curie
(B) Alva Myrdal (B) Alva Myrdal
(C) Jody Williams (C) Jody Williams
(D) Jane Addams (D) Jane Addams
Answer: (A) Marie Curie Answer: (A) Marie Curie
Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields.
Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined.
Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields.
Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined.
Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
Q6. What vitamin is contained in the Sun light ? Q6. What vitamin is contained in the Sun light ?
(A) Vitamin A (A) Vitamin A
(B) Vitamin B (B) Vitamin B
(C) Vitamin C (C) Vitamin C
(D) Vitamin D (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.
Q8. Which of the following Indian Economist won Nobel Prize in Economic Science? Q8. Which of the following Indian Economist won Nobel Prize in Economic Science?
(A) Rabindranath Tagore (A) Rabindranath Tagore
(B) C. V. Raman (B) C. V. Raman
(C) Arundhti Roy (C) Arundhti Roy
(D) Amartya Sen (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.
Q9. Which social science studies the production, distribution and consumption of wealth? Q9. Which social science studies the production, distribution and consumption of wealth?
(A) Commerce (A) Commerce
(B) Economics (B) Economics
(C) Political Science (C) Political Science
(D) Sociology (D) Sociology
Answer: (B) Economics Answer: (B) Economics
Economics is the social science that studies the production, distribution, and consumption of goods and services, including wealth. Economics is divided into two classes, microeconomics and macroeconomics, and it directly affects everyday life.
Economics is primarily concerned with analyzing the choices that individuals, businesses, governments, and nations make to allocate limited resources. Economic models emerged from the broader field of political economy in the late 19th century.Economics is the social science that studies the production, distribution, and consumption of goods and services, including wealth. Economics is divided into two classes, microeconomics and macroeconomics, and it directly affects everyday life.
Economics is primarily concerned with analyzing the choices that individuals, businesses, governments, and nations make to allocate limited resources. Economic models emerged from the broader field of political economy in the late 19th century.
Q10. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere? Q10. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
(A) Astrophysics (A) Astrophysics
(B) Astronautics (B) Astronautics
(C) Astrology (C) Astrology
(D) Astronomy (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.