Home
Class 12
PHYSICS
A rod of original length L hangs with on...

A rod of original length L hangs with one end free. It expands to `L_1` & `L_2` on hanging a mass of 1kg and 2kg from its free end respectively. Find length L

A

`2L_1 - L_2`

B

`3L_1 - L_2`

C

`(L_1 L_2)^(0.5)`

D

`(L_1 L_2)^(0.3)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS SECTION B|30 Videos
  • JEE MAIN 2023

    JEE MAINS PREVIOUS YEAR|Exercise Question|455 Videos

Similar Questions

Explore conceptually related problems

A wire of length L is hanging from a fixed support. The length changes to L_(1) and L_(2) when masses M_(1)and M_(2) are suspended respectively from its free end. Then L is equal to

A uniform rod of young's modulus Y is tretched by two tension T_1 and T_2 such that rods gets expanded to length L_1 and L_2 respectively.Find initial length of rod?

A wire of length L,area of cross section A is hanging from a fixed support. The length of the wire changes to L_1 when mass M is suspended from its free end. The expression for Young's modulus is:

A uniform rod ofmass M and length L is hanging from its one end free to rotate in a veritcal plane.A small ball of equal mass is attached of the lowe end as shown. Time period of small oscillations of the rod is

A composite bar of length L = L_(1) + L_(2) is made up from a rod of material 1 and of length L_(1) attached to a rod of material 2 and of length L_(2) as shown. If alpha_(1) and alpha_(2) are their respective coefficient of linear expansion, then equivalent coefficient of linear expansion for the composite rod is

Two rods, one of aluminium and the other made of steel, having initial length l_1 and l_2 are connected together to from a single rod of length l_1+l_2. The coefficients of linear expansion for aluminium and steel are alpha_a and alpha_s and respectively. If the length of each rod increases by the same amount when their temperature are raised by t^0C, then find the ratio l_1//(l_1+l_2)

Steel wire of length 'L' at 40^@C is suspended from the ceiling and then a mass 'm' is hung from its free end. The wire is cooled down from 40^@C to 30^@C to regain its original length 'L'. The coefficient of linear thermal expansion of the steel is 10^-5//^@C , Young's modulus of steel is 10^11 N//m^2 and radius of the wire is 1mm. Assume that L gt gt diametere of the wire. Then the value of 'm' in kg is nearly

JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
  1. Assertion- If energy of incident photon is less than work function of ...

    Text Solution

    |

  2. vec(A) and vec(B) are two vectors having equal magnitude. If magnitude...

    Text Solution

    |

  3. A rod of original length L hangs with one end free. It expands to L1 &...

    Text Solution

    |

  4. A body blasts into 3 pieces of mass 1:1:2. Two bodies moves with speed...

    Text Solution

    |

  5. Heat given 300 cal carnot engine rejects 225 cal. Temperature of sourc...

    Text Solution

    |

  6. At a certain place the angle of dip is 30^(@) and the horizontal compo...

    Text Solution

    |

  7. Escape velocity on planet 1 is given as 12 m/s . If density of another...

    Text Solution

    |

  8. A particle performing SHM with A = 10cm is given impulse at x = 5cm su...

    Text Solution

    |

  9. Average intensity of an EM wave is I = 0.22 W/m^2 then magnetic field ...

    Text Solution

    |

  10. For two unit vectors hat(A) and hat(B), it is given that hat(A) + ha...

    Text Solution

    |

  11. A spherical shell of radius R is rolling on a level horizontal surface...

    Text Solution

    |

  12. Vander Waal Equation of (p + a/v^2)(v-b) = RT. What are the dimension ...

    Text Solution

    |

  13. Common emitter base current 100 mu A and collector 10 mu A than loa...

    Text Solution

    |

  14. Find vA - vB

    Text Solution

    |

  15. Find equivalent thermal conducting between A & B

    Text Solution

    |

  16. When dielectric K1 is replaced by K2 then find percentage change in en...

    Text Solution

    |

  17. A parallel beam strikes a sphere of RI 1.5 and diameter 30cm, the dist...

    Text Solution

    |

  18. A particle having mass = 100g charge q = 40 mu C is projected with vel...

    Text Solution

    |

  19. Velocity of a particle varies as V = bx^(5/2) where b = 0.25 find work...

    Text Solution

    |

  20. Half life of a substance is 5 days. Initial activity is 2.56 xx 10^-3....

    Text Solution

    |