### General properties of matter

Choose the appropriate option.

#### Question 1. For a steel boat floating on a lake, the weight of the water displaced by the boat is

 less than the weight of the boat (NA)

 more than the weight of the boat (NA)

 equal to the weight of the part of the boat which is below the water level of the lake (NA)

 equal to the weight of the boat (NA)

Choose the appropriate option.

#### Question 2. When a solid object is immersed in water, then there is a loss in its weight. This loss is

 equal to the weight of the water displaced (NA)

 less than the weight of the water (NA)

 greater than the weight of the water displaced (NA)

 not related to the weight of the water displaced (NA)

Choose the appropriate option.

#### Question 3. Specific gravity of silver is 11 and specific gravity of iron is 8. Which one among the following is the approximate relative density of silver with respect to iron?

 1.4 (NA)

 0.7 (NA)

 3.0 (NA)

 2.8 (NA)

Choose the appropriate option.

#### Question 4. Suppose, we have an iron nail and an iron ball of same mass. When submerged in water, then the iron ball may float but the nail always sinks. This is because

 buoyant force on the ball is larger than that of the nail due to their shapes (NA)

 viscous force on the ball is higher (NA)

 viscous force on the nail is higher (NA)

 gravitational force affects the ball differently from the nail (NA)

Choose the appropriate option.

#### Question 5. Bernoulli’s principle is based on which of among the following laws?

 conservation of mass (NA)

 conservation of momentum (NA)

 conservation of angular momentum (NA)

 conservation of energy (NA)

Choose the appropriate option.

#### Question 6. Kerosene oil rises in a wick of lantern because of

 buoyancy of air (NA)

 diffusion of the oil through the wick (NA)

 capillary action in the wick (NA)

 gravitation pull of the wick (NA)

Choose the appropriate option.

#### Question 7. The densities of three liquids are D, 2D and 3D. What will be the density of the resulting mixture, if equal volumes of the three liquids are mixed?

 6D (NA)

 1.4D (NA)

 2D (NA)

 3D (NA)

Choose the appropriate option.

#### Question 8. A deep sea diver may hurt his ear drum during diving because of

 lack of oxygen (NA)

 high atmospheric pressure (NA)

 high water pressure (NA)

 All of the above (NA)

Choose the appropriate option.

#### Question 9. Which one of the following statements is not correct?

 in steady flow of a liquid, the velocity of liquid particles reaching at a particular point is the same at all points (NA)

 steady flow is also called streamlined flow (NA)

 in steady flow, each particle may not follow the same path as taken by a previous particle passing through that point (NA)

 Two streamlines cannot intersect with each other (NA)

Choose the appropriate option.

#### Question 10. Which one of the following is not a result of surface tension?

 nearly spherical drop of rain (NA)

 capillary rise (NA)

 Removal of dirt by soap or detergent (NA)

 Flow of a liquid (NA)

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