Home
Class 12
PHYSICS
A wire gets elongated by 4 mm when a blo...

A wire gets elongated by 4 mm when a block of mass 2 kg is suspended from it. Now, the block is immersed in water, the wire contracts by 1 mm. Find the density of block when the density of water is `1000kg//m^(3)`.

Text Solution

Verified by Experts

The correct Answer is:
`4g//cm^(3)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE|Exercise Assignment (SECTION - J)|1 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE|Exercise EXERCISE|19 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    AAKASH INSTITUTE|Exercise Assignment (SECTION - H)|2 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE|Exercise SECTION - J|9 Videos
  • Mock test 03

    AAKASH INSTITUTE|Exercise EXAMPLE|37 Videos

Similar Questions

Explore conceptually related problems

The wire of a Young's modules appartus is elongated by 2 mm when a brick is suspended from .it When the brick is immersed in water the wire contracts by 0.6mm Calculate the density of the brick given that the density of water is 1000 kg m^(-3)

A wire elongates by 8 mm when a load of 9 kg is suspended from it. What is the elongation when its radius is doubled, if all other quantites are the same as before ?

Knowledge Check

  • A mass of 0.5 kg is suspended from wiere, then length of wire increase by 3 mm then work done

    A
    `4.5xx10^(-3)` Joule
    B
    `7.3xx10^(-3)` Joule
    C
    `9.3xx10^(-2)` Joule
    D
    `2.5` Joule
  • If the density of a block is 981 kg//m^(3) then it shall

    A
    sink in water
    B
    float with some part emmersed in water
    C
    float completely immersed in water
    D
    float completely out of water
  • The reading of a spring balance when a block is suspended from it in air is 60 N. This reading is changed to 40 N when the block is submerged in water. The relative density of the block is:

    A
    3
    B
    2
    C
    6
    D
    `(3)/(2)`
  • Similar Questions

    Explore conceptually related problems

    A block of wood weights 16 kg in air. A lead block which has apparent weight of 28 kg in water is attached to the block of wood, and both of them are submerged in water If their combined apparent weight in water is 19 kg find the density of wooden block in kg//m^(3) Take density of water =1000 kg//m^(3) .

    A wire elongates by 9 mm when a load of 10 kg is suspended from it. What is the elongation when its radius is doubled, if all other quantities are same as before?

    A block of wood of density 500 kg//m^(3) has mass m kg in air. A lead block which has apparent weight of 28 kg in water is attached to the block of wood, and both of them are submerged in water. If their combined apparent weight in water is 20 kg , find the value of m . Take density of water =1000kg//m^(3)

    A block of wood floats with 1//4 of its volume under water. What is he density of wood? (Density of water =1000 kg //m^(3))

    A block of mass 0.2 kg is suspended from the ceiling by a light string. A second block of mass 0.3 kg is suspended from the first block through another string. Find the tensions in the two strings. Take g=10 m/s^2 .