A cube with sides of proper length lo is viewed from a reference frame – McqOptions

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1.	A cube with sides of proper length l_o is viewed from a reference frame moving with velocity v, parallel to an edge of the cube. The expression for the volume of the cube for the observer is __________
A.	L<sub>o</sub><sup>3</sup>
B.	L<sub>o</sub><sup>3</sup> ( sqrt{1- frac{v^2}{c^2}} )
C.	L<sub>o</sub><sup>3</sup> ((1- frac{v^2}{c^2})^{3/2} )
D.	L<sub>o</sub><sup>3</sup> ((1- frac{v^2}{c^2}) )
Answer» B. L<sub>o</sub><sup>3</sup> ( sqrt{1- frac{v^2}{c^2}} )

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