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1. Which of the following laws is associated with the heating effect of electric current ?Joule's law Ohm's law Faraday's law Newton's law View Answer Discuss in Forum Report Question2. The value of acceleration due to gravity ‘g’ depends on: 1. Constant of Gravitation ‘G’ 2. Mass of the earth ‘M’ 3. Mass of the falling object ‘m’ 4. Radius of the earth ‘R’ ?a, c, d b, c, d a, b, c a, b, d View Answer Discuss in Forum Report Question3. Which element in the periodic table forms maximum number of compounds ?H O S C View Answer Discuss in Forum Report Question4. A body at rest can have ?Speed Velocity Momentum Energy View Answer Discuss in Forum Report Question5. A solid metallic hemisphere with radius r is melted and cast into a solid right circular cone with the radius of the base = r. What is the ratio of their curved surface areas ?5/?2 2/?5 3/2 5/2 View Answer Discuss in Forum Report Question6. How much work is done in moving a charge of 5 C across two points having a potential difference of 16 V ?65 J 45 J 40 J 80 J View Answer Discuss in Forum Report Question7. Which of the following statements is true ?Carbon monoxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Carbon dioxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon dioxide diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon monoxide diffuses from blood into lungs View Answer Discuss in Forum Report Question8. Mendeleev could not assign a correct position to which of the following elements in his table ?Lithium Potassium Hydrogen Helium View Answer Discuss in Forum Report Question9. The atmospheric pressure at sea level is ........ atm ?0.001 1 0 0.1 View Answer Discuss in Forum Report Question10. Who demonstrated that objects of different masses would reach the ground together when dropped from the same height ?Isaac Newton Archimedes Robert Boyle Galileo Galilei

Question

  1. Which of the following laws is associated with the heating effect of electric current ?Joule's law Ohm's law Faraday's law Newton's law View Answer Discuss in Forum Report Question2. The value of acceleration due to gravity ‘g’ depends on: 1. Constant of Gravitation ‘G’ 2. Mass of the earth ‘M’ 3. Mass of the falling object ‘m’ 4. Radius of the earth ‘R’ ?a, c, d b, c, d a, b, c a, b, d View Answer Discuss in Forum Report Question3. Which element in the periodic table forms maximum number of compounds ?H O S C View Answer Discuss in Forum Report Question4. A body at rest can have ?Speed Velocity Momentum Energy View Answer Discuss in Forum Report Question5. A solid metallic hemisphere with radius r is melted and cast into a solid right circular cone with the radius of the base = r. What is the ratio of their curved surface areas ?5/?2 2/?5 3/2 5/2 View Answer Discuss in Forum Report Question6. How much work is done in moving a charge of 5 C across two points having a potential difference of 16 V ?65 J 45 J 40 J 80 J View Answer Discuss in Forum Report Question7. Which of the following statements is true ?Carbon monoxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Carbon dioxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon dioxide diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon monoxide diffuses from blood into lungs View Answer Discuss in Forum Report Question8. Mendeleev could not assign a correct position to which of the following elements in his table ?Lithium Potassium Hydrogen Helium View Answer Discuss in Forum Report Question9. The atmospheric pressure at sea level is ........ atm ?0.001 1 0 0.1 View Answer Discuss in Forum Report Question10. Who demonstrated that objects of different masses would reach the ground together when dropped from the same height ?Isaac Newton Archimedes Robert Boyle Galileo Galilei
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Solution

  1. The law associated with the heating effect of electric current is Joule's law.

  2. The value of acceleration due to gravity ‘g’ depends on: Constant of Gravitation ‘G’, Mass of the earth ‘M’, and Radius of the earth ‘R’. So, the correct option is a, b, d.

  3. The element in the periodic table that forms the maximum number of compounds is Carbon (C).

  4. A body at rest can have Energy.

  5. The ratio of their curved surface areas when a solid metallic hemisphere with radius r is melted and cast into a solid right circular cone with the radius of the base = r is 2/√5.

  6. The work done in moving a charge of 5 C across two points having a potential difference of 16 V is 80 J.

  7. The true statement is: Oxygen diffuses from lungs into blood and carbon dioxide diffuses from blood into lungs.

  8. Mendeleev could not assign a correct position to Hydrogen in his table.

  9. The atmospheric pressure at sea level is 1 atm.

  10. Galileo Galilei demonstrated that objects of different masses would reach the ground together when dropped from the same height.

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