Question

1. The length of the longest rod that can be fitted in a cubical vessel of edge 10 cm long, is
(a) 10 cm
(b) 10/2 cm
(c) 103 cm
(d) 20 cm

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Answer 1

Answer:

The longest rod that can be fitted in the cubical vessel is its diagonal.

Side of the cube (l)=10cm

So, the diagonal of the cube =

3

l

=

3

×10cm

=10

3

cm

So, the length of the longest rod that, can be fitted in the cubical box is 10

3

cm.