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
Q1. Which of the following Indian Economist won Nobel Prize in Economic Science? Q1. 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.
Q3. What vitamin is contained in the Sun light ? Q3. 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.
Q4. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere? Q4. 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.
Q5. The science dealing with X-rays and other high-energy radiation, especially for the diagnosis and treatment of disease. Q5. 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?
(A) nephrology (A) nephrology
(B) neurology (B) neurology
(C) pathology (C) pathology
(D) radiology (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.
Q6. The weight of an object on the moon is equal to ___ of its weight on the earth. Q6. The weight of an object on the moon is equal to ___ of its weight on the earth.
(A) 1/3 (A) 1/3
(B) 1/4 (B) 1/4
(C) 1/5 (C) 1/5
(D) 1/6 (D) 1/6
Answer: (D) 1/6 Answer: (D) 1/6
1/6th
The moon's gravitational force is only about 16.6 % of Earth's gravity which means an object would weigh six times less on the moon than they do on Earth.1/6th
The moon's gravitational force is only about 16.6 % of Earth's gravity which means an object would weigh six times less on the moon than they do on Earth.
Q7. What is the lower fixed point of fahrenheit scale? Q7. What is the lower fixed point of fahrenheit scale?
(A) 0°F (A) 0°F
(B) 32°F (B) 32°F
(C) 180°F (C) 180°F
(D) 212°F (D) 212°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.
Q8. When is National Science Day celebrated? Q8. When is National Science Day celebrated?
(A) 26 August (A) 26 August
(B) 13 July (B) 13 July
(C) 26 February (C) 26 February
(D) 28 February (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.
Q9. Which planet of the Solar System is the brightest planet? Q9. Which planet of the Solar System is the brightest planet?
(A) Mercury (A) Mercury
(B) Mars (B) Mars
(C) Venus (C) Venus
(D) Jupiter (D) Jupiter
Answer: (C) Venus Answer: (C) Venus
Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon). It looks like a very bright star. Venus is the brightest planet in the Solar System.Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon). It looks like a very bright star. Venus is the brightest planet in the Solar System.