Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat soles. Which one would feel more comfortable while walking on a sandy beach? Give reasons for your answer.

If one of the angles by two intersecting lines is a right angles, what can you say about the other three angles ? Give reason for your answer.

You are given two convex lenses of focal lengths 5 cm and 25 cm. Which one of these would you like to use as an objective in a telescope? Give reasons for your answer.

Two iron spheres of the same diameter are heated to the same temperature. One is soled, and the other is hollow which will expand more?

Two boys are riding their bicycles on the same concrete road. One has new tyres on his bicycle while the other has tyres that are old and used. Which of them is more likely to skid while moving through a patch of the road which has lubricating oil spilled over it?

Two plots of land have same perimeter. One is a square of side 40 m while the other is a rectangle whose breadth is 15m. Which of the plots have greater area and by how much ?

Two plots of land have the same perimeter. One is square of side 60 m while the other is a rectangle whose breadth is 15 m. Which of the plots as greater area and by how much ?

At a camp site there are tents of two shades- one made with black fabric and the other with white fabric. Which one will you prefer for resting on a hot summer afternoon ? Give reason for your choice. Whould you like to prefer the same tent during winter?