Home
Class 12
PHYSICS
A ship is salling in river. An observe ...

A ship is salling in river. An observe is situated at a depth `h` in water `(mu_(w))`. If `x gt gth`, find the angle made form vertical, of the line of slight of ship.

Text Solution

Verified by Experts

`C = sin^(-1)((mu_(a))/(mu_(w)))`
Promotional Banner

Topper's Solved these Questions

  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Exercise-1|142 Videos

  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Exercise-2|63 Videos

  • GEOMATRICAL OPTICS

    RESONANCE|Exercise Advance level Problems|35 Videos

  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise PART -II|10 Videos

  • GRAVITATION

    RESONANCE|Exercise HIGH LEVEL PROBLEMS|16 Videos

Similar Questions

Explore conceptually related problems

(i) In a car race sound signals emitted by the two cars are detected by the detector on the straight track at the end point of the race. Frequency observed is 330 Hz and 360 Hz. The original frequency of horn is 300 Hz for both cars. Race ends with the separation of 1000 m between the cars. Assume both cars move with constant velocity and velocity of sound is 330 m/s. Find the time (in seconds) taken by the winning car to finish the race. (ii) A source of sound of frequency f is dropped from rest from a height h above the ground. An observer O_(1) is located on the ground and another observer O_(2) is inside water at a depth d from the ground. Both O_(1) and O_(2) are vertically below the source. The velocity of sound in water is 4V and that in air is V. Find (a) The frequency of the sound detected by O_(1) and O_(2) corresponding to the sound emitted the source initially. (b) The frequency detected by both O_(1) and O_(2) corresponding to the sound emitted by the source at height h//2 from the ground.

Water stands at a depth H in a tank whose side walls are vertical. A hole is made on one of the walls at a depth h below the water surface. Find at what distance from the foot of the wall does the emerging stream of water strike the floor and for what value of h this range is maximum ? What is the maximum possible range ?

A rectangular tank is placed on a horizontal ground and is filled with water to a height H above the base. A small hole is made on one vertical side at a depth D below the level of the water in the tank. The distance x from the bottom of the tank at which the water jet from the tank will hit the ground is

A small wooden rod of length 5mm is fixed at the bottom of the container filled with water (mu_(water)=4/3) . It is making an angle 37^(@) with vertical. If an observer (in air) observes the rod paraxially, and the rod is appearing at an angle (pi)/x radian with vertical then the find the value of x .

Two ships are there in the sea on either side of a light house in such a way that the ships and the light house are in the same straight line. The angles of depression of two ships are observed from the top of the light house are 60o and 45o respectively. If the height of the light house is 200 m, find the distance between the two ships. (U s e sqrt(3)=1. 73)

Water stand at a heigh H in a tank whose sides are vertical. An orifice is made at the depth h on one of the wall Fig. 7(c).25 . The emerging stream of water strikes at the distance R from the tank on the floor./ Find the relation for R in term of h, and H. When R is maxmimum, how h and H are related.

A small object of height h is placed perpendicular to the principal axis of a convex mirror of focal length f at a distance x from the pole of the mirror. An observer is located on the principal axis at a distance L from the pole of the mirror. (Take x, f, L gt gt h] . (a) Calculate the angle alpha formed by the image at the eye of the observer (b) If the convex mirror is replaced by a plane mirror, with all other things remaining unchanged, calculate the angle beta formed by the image at the eye. (c) Justify the statement “objects are closer than they appear” written on the rear view mirror of your car.

What is filled in a rectangular tank of size 3 m xx 2 m xx 1 m . (a) Find the total force exerted by the water on the bottom surface of the tank. (b) Consider a vertical side of area 2 m xx 1 m . Take a horizontal strip of width delta x metre in this side, situated at a depth of x metre from the surface of water. Find the force by the water on this strip. ( c) Find the torque of the force calculated in part (b) about the bottom edge of this side. (d) Find the total force by the water on this side. ( e) Find the total torque by the water on the side about the bottom, edge. Neglect the atmospheric pressure and take g = 10 m//s^2 .

RESONANCE-GEOMATRICAL OPTICS -Problem
  1. A concave mirror is placed inside water its shining surface upwards an...

    Text Solution

    |

  2. Prove that the shift in position of object due to parallel slab is g...

    Text Solution

    |

  3. Find the apparent depth of object O below surface AB, seen by an obs...

    Text Solution

    |

  4. In above question what is the depth of object corresponding to inci...

    Text Solution

    |

  5. In above question if observer is in medium mu(3) what is the apparen...

    Text Solution

    |

  6. Find the radius of circle of illuminance, if a luminous object is pla...

    Text Solution

    |

  7. A ship is salling in river. An observe is situated at a depth h i...

    Text Solution

    |

  8. Find r, r', e delta for the case shown in figure

    Text Solution

    |

  9. For the case shown in figure shown in figure prove the relations r' ...

    Text Solution

    |

  10. From the graph fo angle of deviation delta versus angle of incidwenc...

    Text Solution

    |

  11. If two prisms are combined , as shown in figure, find the total angu...

    Text Solution

    |

  12. The dispersive powers of crown and flint glasses are 0.03 and 0.05 res...

    Text Solution

    |

  13. See the situatiion shown on figure (1) Find the positiion of imag...

    Text Solution

    |

  14. Find the focal length of a double-convex lens with R(1) = 15cm and R(...

    Text Solution

    |

  15. Find the focal length of a plance-convex lens with R(1) = 15cm and R...

    Text Solution

    |

  16. Find the focal length of a convavo-convex lens (Positive me menisus ) ...

    Text Solution

    |

  17. Figure shows a point object and a divegoing lens Find the final ...

    Text Solution

    |

  18. An extended real object is placed perpendicular to the principle axis...

    Text Solution

    |

  19. Find the equivalent focal length of the system for paraxal rays paral...

    Text Solution

    |

  20. See the figure Find the equivalent focal length of the combination ...

    Text Solution

    |