Home
Class 12
PHYSICS
A fish rising vertically up towards the ...

A fish rising vertically up towards the surface of water with speed `3 ms^(-1)` observes a bird diving vertically down towards it with speed `9ms^(-1)`. The actual velocity of bird is:

Text Solution

Verified by Experts

`6 m//s`
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - A) Objective Type Questions (One option is correct)|38 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - B) Objective Type Questions (One option is correct)|15 Videos

  • PHYSICAL WORLD

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (Section-B)|4 Videos

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE ENGLISH|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos

Similar Questions

Explore conceptually related problems

A fish rising up vertically toward the surface of water with speed 3ms^(-1) observes a bird diving down vertically towards it with speed 9ms^(-1) . The actual velocity of bird is

A fish rising up vertically toward the surface of water with speed 3ms^(-1) observes a bird diving down vertically towards it with speed 9ms^(-1) . The actual velocity of bird is

In a lake, a fish rising vertically to the surface of water uniformly at the rate of 3 m/s, observes a bird diving vertically towards the water at the rate of 9 m/s. The actual velocity of the dive of the bird is (given, refractive index of water = 4/3)

A fish rising vertically to the surface of water in a lake uniformly at the rate of 3ms^(-1) observes a bird diving vertically towards the water at a rate of 9ms^(-1) vertically above it. If the refractive index of water is 4/3 the actual velocity of the dive of the bird is (in ms^(-1) )

System is shown in fig. and wedge is moving toward left with speed 2ms^(-1) . Find the velocity of the block B.

A fish is moving up vertically with speed 4 cm/s inside a pond. A bird is moving vertically downward (see figure). Velocity of the bird w.r.t. fish is 16 cm/s downward. Find out the actual velocity of the bird (in cm/s). Given refractive index of water is (4)/(3) .

A car is moving towards east with a speed of 25 km h^-1 . To the driver of the car, a bus appears to move towards north with a speed of 25 sqrt(3) km h^-1 . What is the actual velocity of the bus ?

A bird B in air is diving vertically downwards over a water tank with speed 5 cm/s. Base of the tank is silvered. A fish F in the tank is rising vertically upwards along the same line with speed 2 cm/s. Water level is lowered at the rate of 2 cm/s. Take mu_("water")=4//3

The driver of a car moving towards a rocket launching with a speed of 6 ms^(-1) observed that the rocket is moving with speed of 10 ms^(-1) The upward speed of the rocket as seen by the stationary observer is nearly

A fish is vertically below a flying bird moving vertically down toward water surface. The bird will appear to the fish to be

AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - D)
  1. A fish rising vertically up towards the surface of water with speed 3 ...

    Text Solution

    |

  2. A : Plane and convex mirrors can produce real images of objects. R :...

    Text Solution

    |

  3. A : A virtual image cannot be caught on a screen but it can be photogr...

    Text Solution

    |

  4. A : When a diver under water looks obliquely at a fisherman standing o...

    Text Solution

    |

  5. A : The apparent depth of a tank of water decreases if viewed obliquel...

    Text Solution

    |

  6. A : Proper cutting of diamond makes it sparkle. R : Diamond has very...

    Text Solution

    |

  7. A : The angle subtended at the eye by an object is equal to the angle ...

    Text Solution

    |

  8. The total plane angle subtended by a circle at its centre is

    Text Solution

    |

  9. A : Magnifying power of a simple microscope cannot be increased beyond...

    Text Solution

    |

  10. A : The objective and the eye-piece of a compound microscope should ha...

    Text Solution

    |

  11. A : When viewing through a compound microscope, our eyes should be pos...

    Text Solution

    |

  12. A uniform capillary tube of inner radius r is dipped vertically into a...

    Text Solution

    |

  13. A : A virtual image cannot be produced on screen. R : The light ener...

    Text Solution

    |

  14. A : Lenses of large aperture suffer from spherical aberration. R : T...

    Text Solution

    |

  15. A : The image formed by a concave lens is always virtual. R : The ra...

    Text Solution

    |

  16. A : When two lenses in contact form an achromatic doublet, then the ma...

    Text Solution

    |

  17. A : A reflecting type of telescope is preferred over refracting type i...

    Text Solution

    |