Home
Class 11
PHYSICS
If beta is the angle between (hati + ha...

If `beta ` is the angle between `(hati + hatj)` with`hati`, then `beta` is

A

`90^@`

B

`45^@`

C

`0^@`

D

`180^@`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    MBD|Exercise EXERCISE|14 Videos

  • MODEL PAPER 2

    MBD|Exercise EXERCISE|48 Videos

Similar Questions

Explore conceptually related problems

The angle between (hati + hatj) and (hati - hatj) is

It theta be the angle between the vectors hati + hatj and hatj + hatk then theta is

If hati-3hatj+5hatk bisects the angle between hata and -hati+2hatj+2hatk , where hata is a unit vector, then

If theta is the angle between the vectors a=2hati+2hatj-hatk and b=6hati-3hatj+2hatk , then

The angle between the vectors hati-hatj and hatj-hatk is :

Find the angle between the vectors : hati-hatj and hatj-hatk .

Find the angle between the vectors hati-hatj and hatj-hatk .

Find the angle between the vectors : hati+hatj+hatk and hati+hatj-hatk .

MBD-MODEL PAPER 1-EXERCISE
  1. Name factors which affect the property of elasticity of a solid.

    Text Solution

    |

  2. The magnitude of (hati + hatj) is

    Text Solution

    |

  3. If beta is the angle between (hati + hatj) withhati, then beta is

    Text Solution

    |

  4. The angle between (hati + hatj) and (hati - hatj) is

    Text Solution

    |

  5. Two vectors vecA and vecB have their resultant equal to either of the...

    Text Solution

    |

  6. If vecA.vecB= vecB.vecC when theta1 is the angle between A and B. thet...

    Text Solution

    |

  7. The earth and the moon are attracted to each other by gravitational fo...

    Text Solution

    |

  8. A stone is released from the top of a tower of height 19.6 m. Calculat...

    Text Solution

    |

  9. Find the wrong statement : The acceleration due to gravity decreases i...

    Text Solution

    |

  10. If the earth suddenly shrinks (without chaging mass) to half its prese...

    Text Solution

    |

  11. At what altitude in metre will the acceleration due to gravity be 25% ...

    Text Solution

    |

  12. State principle of hmogenity of dimensio and its use in dimensional a...

    Text Solution

    |

  13. The time of flight of a body projected with initial velocity u at an a...

    Text Solution

    |

  14. A bullet fired at an angle of 30^@ with the horizontal hits the ground...

    Text Solution

    |

  15. A heavier and lighter body have the same momentum. Show that lighter b...

    Text Solution

    |

  16. Friction is a necessary evil. Explain.

    Text Solution

    |

  17. State and prove work-energy theorem.

    Text Solution

    |

  18. Show that the area of the triangle contained between the vectors veca ...

    Text Solution

    |

  19. Lighter the body, smaller will be the acceleratio with which it falls ...

    Text Solution

    |

  20. What is Stokes' law? Derive the relation by method of dimensions.

    Text Solution

    |