Home
Class 11
PHYSICS
Statement-1: Leaves and small insects fl...

Statement-1: Leaves and small insects float on the surface of water buoyed up by archimede's principle
Statement-2: They are not partially submerged. The object are kept afloat by surface tension.

A

Statement-1, is true, Statement-2 is true, Statement-2 is correct explanation for statement-1

B

Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explantion for statement-1

C

statement-1 is true, statement-2 is false

D

statement-1 is false statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 3 (Comprehension based questions)|23 Videos

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 4 A (Elasticity)|7 Videos

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 2 (One or more than one correct answer)|53 Videos

  • CENTRE OF MASS

    ALLEN |Exercise EXERCISE-V B|19 Videos

  • ERROR AND MEASUREMENT

    ALLEN |Exercise Part-2(Exercise-2)(B)|22 Videos

Similar Questions

Explore conceptually related problems

Statement-1: The acceleration of a particle near the earth surface differs slightly from the gravitational acceleration Statement-2: The earth is not a uniform sphere and because the earth rotates.

Statement-1: hot soup tastes better than the cold soup. Statement-2: Hot soup spread properly on our tondue due to lower surface tension.

Statement -1 : A large soap bubble expands while a small bubble shrink, when they are connecteed to each other by a capillary tube. Statement -2 : The excess pressure (due to surface tension) inside a spherical bubble increasesee, as its volume decreases.

Statement-1: Upthurst on a solid block of iron when immersed in a lake will be less on the surface than on the bed of the lake. Statement-2: On the surface of the lake density of water will be less than that at the bed and upthrust depends on the density of liquid.

This question contains Statement -1 and Stantement -2 Of the four choices given after the statements, choose the one that best desctibes the two statemesnts. Statement -1: For a mass M kept at the center of a cube of side 'a', the flux of gravitational field passing through its sides 4piGM. Statement -2: If the direction of a field due to a point source is radial and its dependence on the distance 'r' from the source is given as (1)/(r^2) , its flux throught a closed surface depends only on the strength of the source enclosed by the surfcae and not on the size or shape of the surface.

Statement-1 : A particle of mass m strikes a smooth wedge of mass M as shown in the figure. Linear momentum of particles along the inclined surface of wedge is conserved during collision. and Statement-2 : Wege exerts a force on particle perpendicular to inclined face of wedge during collision.

Statement-1: The angle of contact of a liquid decrease with increase in temeperature Statement-2: With increase in temperature the surface tension of liquid increase.

The lower end of a capillary tube of diameter 2.00 mm is dipped 8.00 cm below the surface of water in a beaker . What is the pressure required in the tube in order to blow a hemispherical bubble at the end in water ? The surface tension of water at temperature of the experiments is 7.30xx10^(-2)Nm^(9-1) . 1 atmospheric pressure =1.01xx10^(5)Pa . Density of water =1000kg//m^(3),g=9.80ms^(-2) . Also calulate the excess pressure .

The lower end of a capallary tube of diameter 2.50 mm is dipped 8.00 cm below the surface of water in a beaker .What is the pressure required in the tube in order to blow a hemispherical bubble at the end in water ? The surface tension of water at temperature of the experiments is 7.30xx10^(-2)Nm^(-1) . 1 atmospheric pressure 1.01xx10^(5)Pa . Density of water =1000kg//m^(3),g=9.80ms^(-2) .Also calculate the excess pressure .

ALLEN -ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 3 (Assertion & Reason)
  1. Statement-1: In gravity free space, the liqid in a capillary tube will...

    Text Solution

    |

  2. Statement-1: It is better to wash the clothes in cold soap solution. ...

    Text Solution

    |

  3. Statement-1: A gas filled balloon stops rising after it has attained a...

    Text Solution

    |

  4. Statement-1: A parachute descends slowly whereas a stone dropped from ...

    Text Solution

    |

  5. Statement-1: hot soup tastes better than the cold soup. Statement-2:...

    Text Solution

    |

  6. Statement-1: Roofs of buildings are blown off during a strong storm. ...

    Text Solution

    |

  7. Statement-1: The stream of water emerging from a wate tap "necks down"...

    Text Solution

    |

  8. Statement-1: As wind flows left to right and a ball is spined as shown...

    Text Solution

    |

  9. Statement-1: A block is immersed in a liquid inside a beaker which is ...

    Text Solution

    |

  10. Statement-1: An ice cube is floating in water in a vessel at 0^(@)C wh...

    Text Solution

    |

  11. Statement-1: Leaves and small insects float on the surface of water bu...

    Text Solution

    |

  12. Statement-1: Weight of a empty balloon measured in air is w(1). If air...

    Text Solution

    |

  13. Statement-1: The stretching of a coil is determined by its shear modul...

    Text Solution

    |

  14. Assertion : At critical temperature, surface tension of liquids become...

    Text Solution

    |

  15. Statement -1 : A large soap bubble expands while a small bubble shrink...

    Text Solution

    |

  16. Assertion:- The size of a hydrogen balloon increases as it rises in ai...

    Text Solution

    |

  17. Statement I: Smaller drops of liquid resist deforming forces better th...

    Text Solution

    |

  18. Assertion : Specific gravity of a fluid is a dimensionless quantity. ...

    Text Solution

    |

  19. Assertion:- For Reynolds number R(e)gt2000m, the flow of fluid is turb...

    Text Solution

    |

  20. Statement-1: A thin stainless steel needle can lay floating on a still...

    Text Solution

    |