Home
Class 12
PHYSICS
The resultant R of vector P andQ is perp...

The resultant R of vector P andQ is perpendicular to P and R=P both , then angle betwwen `|P|and|Q| `is

A

`45^(@)`

B

`135^(@)`

C

`120^(@)`

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
B
(b) We have, `Q sintheta=P`
and `Qcostheta=R=P`
Dividing these two equations, we get
`tantheta=1`
`:.theta=45^(@)`
:. Angle between P and Q is `135^(@)`
Promotional Banner

Topper's Solved these Questions

  • SCALARS AND VECTORS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 1|37 Videos

  • ROTATIONAL MOTION'

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|35 Videos

  • SEMICONDUCTORS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|25 Videos

Similar Questions

Explore conceptually related problems

The resultant vec(P) and vec(Q) is perpendicular to vec(P) . What is the angle between vec(P) and vec(Q) ?

If the resultant of two vectors vec P and vec Q is given by R^(2) = P^(2) + Q^(2) , then the angle between the vectors vec P and vec Q is _____.

If P+Q=R and |P|=|Q|= sqrt(3) and |R| ==3 , then the angle between P and Q is

The resultant of two vectors vec(P) and vec(Q) is vec(R ) . If the magnitude of vec(Q) is doubled, the new resultant vector becomes perpendicular to vec(P) . Then, the magnitude of vec(R ) is equal to

Choose the incorrect option. The two vectors vec(P) and (Q) are drawn from a common point and vec( R ) = (P) + (Q), then angle between (P) and (Q) is

The resultant of two vectors vec(P) and vec(Q) is vec(R) . If vec(Q) is doubled then the new resultant vector is perpendicular to vec(P) . Then magnitude of vec(R) is :-

Given that P 12, Q = 5 and R = 13 also P+Q=R, then the angle between P and Q will be

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SCALARS AND VECTORS -Exercise 2 (Miscellaneous Problems)
  1. A vetor is added to an equal and oppsite vector of similar nature,form...

    Text Solution

    |

  2. Which of the followingis a unit vector ?

    Text Solution

    |

  3. The expression (1/(sqrt(2))hat(i)+1/(sqrt(2))hat(j)) is a

    Text Solution

    |

  4. Vector P=6hati+4sqrt(2)hatj+sqrt(2)hatk makes angle from Z-axas equal ...

    Text Solution

    |

  5. Given A=hat(i)+hat(j)+hat(k)andB=-hat(i)-hat(j)-hat(k) then (A-B) wil...

    Text Solution

    |

  6. If three vectors along coordinate axis represent the adjacent sides of...

    Text Solution

    |

  7. If two vectors are equal and their resultant is also equal to one of t...

    Text Solution

    |

  8. If A and B are two non- zero vectors having equal magnitude, then angl...

    Text Solution

    |

  9. A man first moves 3m due east, then 6m due north and finally 7m due we...

    Text Solution

    |

  10. The resultant of two forces 3P and 2P is R. If the first force is doub...

    Text Solution

    |

  11. The resultant of A and B is R(1) On reversing the vector B , the resul...

    Text Solution

    |

  12. If the sum of two unit vectors is a unit vector, then magnitude of dif...

    Text Solution

    |

  13. In the figure shown, ABCDEF is a regular hexagon. What is the value of...

    Text Solution

    |

  14. Figure shows three vectors p,q and r, where C is the mid-point of AB. ...

    Text Solution

    |

  15. The velocity of a particle is v=6hat(i)+2hat(j)-2hat(k). The componen...

    Text Solution

    |

  16. The resultant R of vector P andQ is perpendicular to P and R=P both ,...

    Text Solution

    |

  17. The value of hat(i)xx(hat(i)xxa)+hat(j)xx(hat(j)xxa)+hat(k)xx(hat(k)xx...

    Text Solution

    |

  18. What is the angle between vec(P) and the resultant of (vec(P)+vec(Q)) ...

    Text Solution

    |

  19. If a(1) and a(2) aare two non- collineaar unit vectors and if |a(1)+a(...

    Text Solution

    |

  20. If theta is the abgle between two vectors A and B , then match the fol...

    Text Solution

    |