Home
Class 12
PHYSICS
If a vector vec(A) makes angles 45^(@) a...

If a vector `vec(A)` makes angles `45^(@) and 60^(@)` with x and y axis respectively then the angle made by it with z-axis is

A

`30^@`

B

`60^@`

C

`90^@`

D

`120^@`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|91 Videos
  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MOTION IN A STRAIGHT LINE|53 Videos
  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos
  • ATOMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

If a line makes angles (pi)/(4) and (pi)/(3) with Y-axis and Z-axis respectively then the obtuse angle made by that line with X -axis is

Assertion (A) : If a line make angles 45^(@), 45^(@) with the x and y axis repectively then it makes angle 60^(@) with z - axis Reason (R ) : If alpha,beta,lambda are the angle made by a line with the coordinate axes then cos^(2) alpha + cos^(2)beta + cos^(2) lambda = 1

If a line makes angles cos^(-1)(1//5),cos^(-1)(3//5) with X and Y- axes respectively, then the angle made by the line with Z-axis is

If a line makes angles 60^(@), 60^(@) with the positive x-axis and y-axis then the angle made by the line with positive z-axis is

A vector makes angle with X,Y and Z axes that are in the ratio 1:2:1 respectively. The angle made by the vector with Y-axis is

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-MOTION IN A PLANE
  1. The resultant of three vectors 1,2 and 3 units whose directions are th...

    Text Solution

    |

  2. At what angle two vectors of magnitudes vec(A) + vec(B) and A - B act,...

    Text Solution

    |

  3. If a vector vec(A) makes angles 45^(@) and 60^(@) with x and y axis re...

    Text Solution

    |

  4. The rectangular components of a vector lying in xy plane are (n+1) and...

    Text Solution

    |

  5. A mass kg is suspended by a weightless string. The horizontal force re...

    Text Solution

    |

  6. Two particles having position vectors vec(r1) = (3veci+5vecj)m and vec...

    Text Solution

    |

  7. Four persons A, B, C and D initially at the corners of a square of sid...

    Text Solution

    |

  8. A particle moving with a velocity equal to 0.4 ms^(-1) is subjected to...

    Text Solution

    |

  9. Velocity of particle at time t=0 is 2ms^(-1).A constant acceleration o...

    Text Solution

    |

  10. A vertical disc has three grooves directed along chords AB, AC and AD....

    Text Solution

    |

  11. A particle has an initial velocity 3hati+4hatj and an acceleration of ...

    Text Solution

    |

  12. Three particles A, B & C start from the origin at the same time, A wit...

    Text Solution

    |

  13. A paricle starts from the origin at t = 0s with a velocity of 10.0 hat...

    Text Solution

    |

  14. An aeroplane flies along a straight line from A to B with a speed v0 a...

    Text Solution

    |

  15. The distance between two moving particles P and Q at any time is a . I...

    Text Solution

    |

  16. A ship is moving due east with a velocity of 12 m/sec, a truck is movi...

    Text Solution

    |

  17. Two stones are projected from the top of a tower in opposite direction...

    Text Solution

    |

  18. A motor car A is travelling with a velocity of 20 m/s in the north-wes...

    Text Solution

    |

  19. When two bodies approach each other with the different speeds, the dis...

    Text Solution

    |

  20. A boat going down stream crosses a float at a point A. 't1' minutes la...

    Text Solution

    |