The length of a rod is `(11.05+-0.05)cm`. What is the length of two such rods?

If sin theta = 0.5 , what is the length of BC ?

The length of an iron rod is (16.4+-0.1)cm . If a small piece of length (1.2+-0.1)cm is cut out, what is the length of the remaining rod?

Due to rise in temperature of a brass rod by 100^(@)C , its length increases by 0.5 cm. What was the initial length of the rod? alpha for brass =19 times 10^(-6@)C^(-1) .

The length of a rod is 0.5 xx 10^(2) m , the order of magnitude of the length of the rod is

The length of one rod is 2.53 cm and that of the other is 1.27 cm . The least count of the measuring instrument is 0.01 cm . If the two rods are put together end to end , find the combined length.

The length of one rod is 2.53 cm and that of the other is 1.27 cm . The least count of the measuring instrument is 0.01 cm . If the two rods are put together end to end , find the combined length.

A rod AB = 10 cm in length is placed along the principal axis of a concave mirror having focal length equal to 10 cm as shown in Fig. The distance PB = 20 cm . What is the length of the image of the rod AB ?