Q9.8Multiple choice
Consider two cylindrical rods of identical dimensions, one of rubber and the other of steel. Both the rods are fixed rigidly at one end to the roof. A mass M is attached to each of the free ends at the centre of the rods.
- (a)Both the rods will elongate but there shall be no perceptible change in shape.
- (b)The steel rod will elongate and change shape but the rubber rod will only elongate.
- (c)The steel rod will elongate without any perceptible change in shape, but the rubber rod will elongate and the shape of the bottom edge will change to an ellipse.
- (d)The steel rod will elongate, without any perceptible change in shape, but the rubber rod will elongate with the shape of the bottom edge tapered to a tip at the centre.