Home
Class 12
PHYSICS
The declination at a place is 15^@ west ...

The declination at a place is `15^@` west of north. In which direction should a ship be steered so that it reaches a place due east?

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of steering a ship to reach a place due east when the declination is 15 degrees west of north, we can follow these steps: ### Step 1: Understand the Declination The declination is given as 15 degrees west of north. This means that the magnetic north (the direction indicated by a compass) is 15 degrees to the west of the true north (geographic north). ### Step 2: Visualize the Directions - **True North (Geographic North)**: This is the direction towards the North Pole. - **True East (Geographic East)**: This is 90 degrees clockwise from true north. - **Magnetic North**: This is the direction indicated by the compass, which is 15 degrees west of true north. ### Step 3: Determine the Magnetic East Since the magnetic north is 15 degrees west of true north, the magnetic east will also be affected by this declination. To find the magnetic east: - Magnetic east is 90 degrees from magnetic north. - Therefore, we need to add the declination to the true east direction. ### Step 4: Calculate the Angle To find the angle at which the ship should be steered: - True east is at 90 degrees. - The angle for magnetic east will be: \[ \text{Magnetic East} = \text{True East} + \text{Declination} \] \[ \text{Magnetic East} = 90^\circ + 15^\circ = 105^\circ \] ### Step 5: Conclusion The ship should be steered at an angle of 105 degrees from the magnetic north to reach the place due east. ### Final Answer The ship should be steered at an angle of 105 degrees from magnetic north to reach a place due east. ---

To solve the problem of steering a ship to reach a place due east when the declination is 15 degrees west of north, we can follow these steps: ### Step 1: Understand the Declination The declination is given as 15 degrees west of north. This means that the magnetic north (the direction indicated by a compass) is 15 degrees to the west of the true north (geographic north). ### Step 2: Visualize the Directions - **True North (Geographic North)**: This is the direction towards the North Pole. - **True East (Geographic East)**: This is 90 degrees clockwise from true north. ...
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Test Your Grip (a)|1 Videos
  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Test Your Grip (c)|1 Videos
  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Value Based Questions|2 Videos
  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos
  • OPTICS

    PRADEEP|Exercise Multiple choice questions|1 Videos

Similar Questions

Explore conceptually related problems

If the declination at a place is 10^@ west of north, in which direction should a boat be steered so that it reaches a place (i) due east (ii) due west?

The declination at a place is 20^@ west. In what direction should a ship be steered so that it reaches geographic north east?

A ship is to reach a place of 10^(@) south of west. In which direction should it be steered if the declination at the place is 18^(@) west of north.

A ship is to reach a place 10^@ south of west. In what direction should it be steered if declination at the place is 17^@ west?

The declination at a place is 15^@ west of north and a ship has to reach a place 18^@ south of east. In which direction should it be steered?

A ship is to reach a place 20^(@) south of west . In what direction should it be steered if angle of declination at the place is 16^(@) west ?

Ship A is travelling with a velocity of 5 km h^-1 due east. A second ship is heading 30^@ east of north. What should be the speed of second ship if it is to remain always due north with respect to the first ship ?

A ship is sailing due east according to Mariner's compass . If the declination of the place is 18^(@) east of north , what is the true direction of the ship ?

PRADEEP-MAGNETIC EFFECT OF CURRENT AND MAGNETISM-Exercise
  1. A magnetic dipole is under the influence of two magnetic fields. The a...

    Text Solution

    |

  2. Vertical component of earth's magnetic field at a place is sqrt3 times...

    Text Solution

    |

  3. The declination at a place is 15^@ west of north. In which direction s...

    Text Solution

    |

  4. If the horizontal component of earth's magnetic field at a place is 0*...

    Text Solution

    |

  5. A dip circle shows an apparent dip of 60^@ at a place where true dip i...

    Text Solution

    |

  6. A compass needle whose magnetic moment is 60Am^2 points geographic nor...

    Text Solution

    |

  7. A magnetic needle free to rotate in a vertical plane parallel to magne...

    Text Solution

    |

  8. A ship is sailing due west according to Mariner's compass. If the decl...

    Text Solution

    |

  9. The declination at a place is 20^@ west. In what direction should a sh...

    Text Solution

    |

  10. The true dip at a place is 30^@. In what plane is the dip apparently 6...

    Text Solution

    |

  11. The true value of dip at a place is 45^@. If the vertical plane carryi...

    Text Solution

    |

  12. If theta1 and theta2 be the apparent angles of dip observed in two ver...

    Text Solution

    |

  13. A magnetic needle is free to rotate in a vertical plane which makes an...

    Text Solution

    |

  14. At 45^@ to magnetic meridian, the apparent dip is 30^@. What is the tr...

    Text Solution

    |

  15. A ship sails due east according to compass. If declination at that pla...

    Text Solution

    |

  16. A bar magnet of length 10cm is placed in the magnetic meridian with it...

    Text Solution

    |

  17. A very short bar magnet has magnetic moment 1*4175JT^-1. It is placed ...

    Text Solution

    |

  18. A bar magnet 30cm long is placed in magnetic meridian with its north p...

    Text Solution

    |

  19. A short bar magnet of magnetic moment 0*5JT^-1 is placed with its magn...

    Text Solution

    |

  20. A neutral point is found on the axis of a bar magnet at a distance of ...

    Text Solution

    |