Pins and nails are made to have ponted end because

Assertion : paper pins are made to have pointed end. Reason : Because pointed pins have very small area due to which even for small applied force it exert large pressure on the surface.

Cooking utensils are made with plastic handles because they do not have the property of

Signals of danger are made red, because

On heating one end of a piece of a metal, the other end becomes hot because of