Home
Class 11
PHYSICS
Two uniform rods of equal length but dif...

Two uniform rods of equal length but different masses are rigidly joined to form an L-shaped body, which is then pivoted as shown in figure. If in equilibrium the body is in the shown configuration, ratio `M//m` will be

A

2

B

3

C

`sqrt(2)`

D

`sqrt(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Net torque about O should be zero

`:. "Mg"(1)/(2)sin 30^(@)="mg"(1)/(2)sin 60^(@)`
`(M)/(m)=(sin 60^(@))/(sin 30^(@))=sqrt(3)`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ROTATION

    DC PANDEY|Exercise (B) Chapter Exercises|25 Videos

  • ROTATION

    DC PANDEY|Exercise (C) Chapter Exercises|39 Videos

  • ROTATION

    DC PANDEY|Exercise Check point 9.3|15 Videos

  • RAY OPTICS

    DC PANDEY|Exercise Integer type q.|15 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Subjective Questions|2 Videos

Similar Questions

Explore conceptually related problems

Two identical uniform rods of length l are joined to from L shaped frame, as shown is Fig. Locate the centre of mass of the frame.

A rod of length 2l is bent as shown in figure. Coordinates of centre of mass are

Knowledge Check

  • Two uniform rods of equal length but different masses are rigidly joined to form an L -shaped body, which is then pivoted about O as shown. If in equilibrium the body is in the shown configuration, ratio M/m will be

    A
    2
    B
    3
    C
    `sqrt(2)`
    D
    `sqrt(3)`

  • Two uniform rods of equal length but different masses are rigidly joined to form an L-shaped body, which is then pivoted as shown. If in equilibrium the body is in the shown configuration, ratio (M)/(m) will be

    A
    `sqrt(2)`
    B
    2
    C
    `sqrt(3)`
    D
    3

  • Two uniform rods of equal length but different masses are rigidly joined to form an L-shaped body, which is then pivoted as shwon. If in equilibrium, the body is in the shown configuration, ratio M//m will be

    A
    2
    B
    3
    C
    `sqrt2`
    D
    `sqrt3`

    • Similar Questions

    Explore conceptually related problems

    Two uniform identicla rods each of mass M and length l are joined to form a cross as shown in figure. Find the momet of inertia of the cross about a bisector as shown doted in the figure

    A uniform rod of length l and mass m is hung from, strings of equal length from a ceiling as shown in figure. Determine the tensions in the strings?

    Two masses m and M are attached to the strings as shown in the figure. If the system is in equilibrium, then

    Two identical thin uniform rods of length L each are joined to form T shape as shown in the figure. The distance of centre of mass from D is

    A uniform rod of length L and mass m is free to rotate about a frictionless pivot at one end as shown in figure. The rod is held at rest in the horizontal position and a coin of mass m is placed at the free end. Now the rod is released The reaction on the coin immediately after the rod starts falling is

    Home
    Profile