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A solid sphere has a radius of 2 cm and ...

A solid sphere has a radius of 2 cm and a mas of 0.05 kg. What is the relative density of the sphere ?

A

1.39

B

`1.39kg//m^(3)`

C

1.49

D

`1.46kg//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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A solid sphere has a radius of 2 cm and a mass of 0.05 kg. What is the relative density of the sphere? (AS_(1))

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Knowledge Check

  • A sphere of radius R has a concentric spherical cavity of radius r. The relative density of the material of the sphere is sigma . It just floats when placed in tank full of water. The value of R/r is

    A
    `(sigma/(sigma-1))^(1/3)`
    B
    `((sigma-1)/sigma)^(1/3)`
    C
    `(sigma/(sigma-1))^(1/2)`
    D
    `((sigma-1)/sigma)^(1/2)`

  • A hollow sphere of radius R is made of a material of relative density rho . It will float if the thickness of its surface is

    A
    `t gt R//3 rho`
    B
    `t=2R//3 rho`
    C
    `t leR//3rho`
    D
    `tlt 4R//3 rho`

  • If the radius of sphere is 3 cm. If an error of 0.03 cm is made in measuring the radius of the sphere, then the percentage error in its surface area is

    A
    2
    B
    0.02
    C
    0.002
    D
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