Home
Class 12
PHYSICS
A particle hanging from a spring stratch...

A particle hanging from a spring stratches it by `1cm` at earth's surface. Radius of the earth is `6400 km`. At a place `800 km` above the earth's surface, the same particle will stretch the spring by

A

`1cm`

B

`8cm`

C

`0.1cm`

D

`0.79cm`

Text Solution

Verified by Experts

The correct Answer is:
D
`(kx_(1))/(kx_(2))=(F_(gr_(1)))/(F_(gr_(2)))=((r_(2))/(r_(1)))^(2)`
`implies(x_(1))/(x_(2))=((800+6400)/(6400))^(2)=((72)/(64))^(2)=((9)/(8))^(2)`
`implies(x_(1))/(x_(2))=(81)/(64)`
`impliesx_(2)=(64)/(81)x_(1)=(64)/(81)cm=0.79cm`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • GRAVITATION

    FIITJEE|Exercise Comprehension|13 Videos

  • GRAVITATION

    FIITJEE|Exercise Assertion & Reasoning type|1 Videos

  • GRAVITATION

    FIITJEE|Exercise Solved problem (Subjective)|10 Videos

  • GMP ASSESMENT

    FIITJEE|Exercise Numerical Based|61 Videos

  • HEAT AND TEMPERATURE

    FIITJEE|Exercise NUMERICAL BASES QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

AS particle hagin form a spring stretches it by 1 cm at earth's surface. How much will hesame partile stretch the spring at a place 800 km above the earth's surface/ Radius of the earth=6400 km.

A body hanging from a spring stretches it by 2 cm at the earth's surface. How much will the same body stretch the spring at a place 800 cm above the earth's surface? Radius of the earth is 6400 km .

Knowledge Check

  • A body hanging from a massless spring stretches it by 3 cm on earth's surface. At a place 800 km above the earth's surface, the same body will stretch the spring by (Radius of Earth = 6400 km)

    A
    `((34)/(27))cm`
    B
    `((64)/(27))cm`
    C
    `((27)/(64))cm`
    D
    `((27)/(34))cm`

  • A body hanging from a spring strethces it by 1cm at the earth's surface. How much will the same body stretch the spring at a place 16400km above the earth's surface? (Radius of the earth 6400km)

    A
    `1.28m`
    B
    `0.64m`
    C
    `3.6m`
    D
    `0.12m`

  • A particle hanging from a massless spring stretches it by 2 cm at the earth's surface. How much will the same particle stretch the spring at a height? Of 2624Km from the surface of the earth? (Radius of the earth =6400 km )

    A
    `1 cm`
    B
    `2 cm`
    C
    `3 cm`
    D
    `4cm`

    • Similar Questions

    Explore conceptually related problems

    A body hanging frm a spring stretches it by 1 cm at the earth's surface. How much will the same body stretch the spring at aplace 1600 km above the earth surface ? Radius of the earth=6400 km.

    Find the weight of a body at a height of 100 km above the surface of earth. The radius of earth is 6,400 km and the body weighs 90 N on earth's surface.

    The radius of the earth is 6,400 km. Calculate the height from the surface of the earth at which the value of g is 81% of the value at the surface.

    If atmospheric electric field is approximately 150 volt/m and radius of the earth is 6400 km, then the total charge on the earth's surface is

    If the value of g at the surface of the earth is 9.8 m//sec^(2) , then the value of g at a place 480 km above the surface of the earth will be (Radius of the earth is 6400 km)

    Home
    Profile