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The SI unit of length is the meter. Supp...

The SI unit of length is the meter. Suppose we adopt a new unit of length which equals to x meters. The area 1m2 expressed in terms of the new unit has a magnitude-

A

x

B

`x^(2)`

C

`(1)/(x)`

D

`(1)/(x^(2))`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • The SI unit of length is the meter. Suppose we adopt a new unit of length which equals to x meters. The area 1m^2 expressed in terms of the new unit has a magnitude -

    A
    `x`
    B
    `x^2`
    C
    `1/x`
    D
    `1/(x^2)`

  • The radius of the metal atom can be expressed in terms of the length of a unit cell is :

    A
    it is `a//2` for simple cubic lattice
    B
    it is `(sqrt(3)a//4)` for b.c.c. lattice
    C
    it is `(a//2sqrt(2))` for F.C.C. lattice
    D
    All of the above

  • If the units of length, mass and time are doubled, then the new unit of work expressed in terms of L, M and T

    A
    becomes four times
    B
    becomes two times
    C
    becomes eight times
    D
    is not changed

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