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Physics

(Click on suggested Options to select the answer | Color Red means : Wrong & Green Means: Correct)
1. A liquid initially contracts when cooled down to 4°C but on further cooling down to 0°C, it expands. The liquid is
2. By which one of the following, an old written material which cannot be read easily, can be read?
3. An athlete diving off high springboard can perform a variety of exercise in the air before entering the water body . Which one of the following parameters will remain constant during the fall?
  • A. The athlete's linear momentum
  • B. The athlete's angular momentum
  • C. The athlete's kinetic engine
  • D. The athlete's moment of inertia
  • Check Answer | Discussion
4. How is the pressure cooker work?
  • A. Heat cannot escape from the cooker
  • B. Low pressure inside the cooker rises the boiling point of water
  • C. High pressure inside the cooker rises the boiling point of water
  • D. Steam inside the cooker makes food to cook with ease
  • Check Answer | Discussion
5. Two thin wooden sticks are floating on the surface of water closer to each other. A hot needle touches the water between them. How will the sticks react to it
6. Select the correct answer
  • A. two satellites moving the same circular orbit have the same angular momentum
  • B. two satellites moving the same circular orbit have the same mass
  • C. two satellites moving the same circular orbit have the same energy
  • D. two satellites moving the same circular orbit have the same force
  • Check Answer | Discussion
7. You placed car in an open a parking area in a summer day. After a few hours, you noticed that the heat is trapped inside the car. This phenomenon is known as
8. If two conducting spheres are separately charged and then brought in contact
  • A. the total energy of the two spheres is conserved
  • B. the total energy on the two spheres is conserved
  • C. both the total charge and the total charge are conserved
  • D. the final potential is always the mean of the original potential of the two spheres
  • Check Answer | Discussion
9. The weight of an object may be assigned using Newton's
10. Which one of the following statements is correct? A slab of ice kept in a room,
  • A. does not radiate heat
  • B. does not radiate heat but absorbs heat from the surrounding
  • C. radiate heat but absorbs more heat from the surrounding
  • D. radiate heat more than that absorbed by it from the surrounding
  • Check Answer | Discussion

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