Home
Class 11
PHYSICS
The velocity of falling rain drop attain...

The velocity of falling rain drop attain limited value bacause of

A

surface tension

B

upthrust due to air

C

viscous force exerted by air

D

air current

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

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

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN|Exercise Exercise 3 (Assertion & Reason)|32 Videos

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN|Exercise Exercise 1 (Surface Tension)|21 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

Raindrops are falling with velocity 10 sqrt2 m/s making and angle 45^(@) with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with sqrt3 times the velcoity it appeared earlier to the same person running with same velocity . After the velocity of rain drops change the magnitude of velocity of raindrops with respect to ground is

Raindrops are falling with velocity 10 sqrt2 m/s making and angle 45^(@) with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with sqrt3 times the velcoity it appeared earlier to the same person running with same velocity . The angle ( in degrees) between the initial and final velocity of rain drops with respect to ground.

Raindrops are falling with velocity 10 sqrt2 m/s making and angle 45^(@) with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with sqrt3 times the velcoity it appeared earlier to the same person running with same velocity . The magnitude of velocity of man w.r.t ground is

The terminal velocity of a rain drop is 30cm//s . If the viscosity of air is 1.8xx10^(-5)Nsm^(-2) .The radius of rain drop is

Eight identical droplets, each falling under gravity in the earth's atmosphere with terminal velocity v , combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following.

n drops of water, each of radius 2 mm , fall through air at a terminal velocity of 8 cms^(-1) If they coalesce to form a single drop, then the terminal velocity of the combined drop is 32 cms^(-1) The value of n is

Rain is falling with constant and uniform velocity v at angle 37^(@) vertical. An observer starts from rest and moves with uniform acceleration 2 m//s^(2) in horizontal direction (with the rain). After 6 sec . Velocity of rain drop again appear at angle 37^(@) from vertical. If velocity of rain fall w.r.t. ground is 5n , then n is : (tan37^(@) = 3//4)

The velocity of a boedy increases for some time, then attains a constnat value and finally the velocity decreases until the body stops. What will be the shape of the velocity-time graph ?

Rain is falling with a velocity (-4hat(i)+8hat(j)-10hat(k)) . A person is moving with a velocity of (6hat(i)+8hat(j)) on the ground. Find the velocity of rain with respect to man and the direction from which the rain appears to be coming.

By the term velocity of rain, we mean velocity with which raindrops fall relative to the ground. In absence of wind, raindrops fall vertically and in presence of wind raindrops fall obliqucly. Moreover raindrops acquire a constant terminal velocity due air resistance very quickly as they fall toward the carth. A moving man relative to himself observes an altered velocity of raindrops. Which is known as velocity of rain relative to the man. It is given by the following equation. vec(v)_(rm)=vec(v)_(r)-vec(v)_(m) A standstill man relative to himself observes rain falling with velocity, which is equal to velocity of the raindrops relative to the ground. To protect himself a man should his umbrella against velocity of raindrops relative to himself as shown in the following figure. A man walks in rain at 72 cm/m due east and observes the rain falling vertically. When he stops, rain appears to strike his back at 37^(@) from the vertical. Find velocity of raindrops relative to the ground.

ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 1 (Fluid Statics)
  1. A boat floating in a water tank is carrying a number of stones. If the...

    Text Solution

    |

  2. An object of weight W has a uniform rectangular cross section of a x2a...

    Text Solution

    |

  3. Streamline motion is that motion in which there is-

    Text Solution

    |

  4. An aeroplane of mass 3xx10^(4)kg and total wing area of 120 m^(2) is i...

    Text Solution

    |

  5. One end of a horizontal pipe is closed with the help of a velve and th...

    Text Solution

    |

  6. Water is flowing through a channel that is 12m wide with a speed of 0....

    Text Solution

    |

  7. A U-tube of small and uniform cross section contains water of total le...

    Text Solution

    |

  8. 16cm^(3) of water flows per second through a capillary tube of radius ...

    Text Solution

    |

  9. The level of water in a tank is 5 high. A hole of area 1 cm^(2) is mad...

    Text Solution

    |

  10. In the Fig. 15.5.2 below in shown the flow of liquid through a horizo...

    Text Solution

    |

  11. The diagram (figure) shows a venturimeter, through which water is flow...

    Text Solution

    |

  12. Water contained in a tank flows through an orifice of a diameter 2 cm ...

    Text Solution

    |

  13. More viscous oil is used in summer than in winterr in motors due to

    Text Solution

    |

  14. With increase in temperature , the viscosity of

    Text Solution

    |

  15. A rain drop of radius 0.3 mm has a terminal velocity I air 1 ms^(-1)....

    Text Solution

    |

  16. Two liquids of densities d(1) and d(2) are flowing in identical capill...

    Text Solution

    |

  17. The velocity of falling rain drop attain limited value bacause of

    Text Solution

    |

  18. The rate of flow of liquid through a capillary tube in an experiment t...

    Text Solution

    |

  19. A copper ball of radius r travels with a uniform speed v in a viscous ...

    Text Solution

    |

  20. Two drops , of the same radius , are falling through air with a steady...

    Text Solution

    |