Using the mathematical reasoning, what will be the converse of the following statement :

'if \(x<y\), then \(x+5<y+5\)', where \(x\) and \(y\) are positive integers ?

A student conceptualises Pythagoras theorem with the help of pictures and graphs very quickly. According to Bruner, at what stage of cognitive development is the students ?

Identify the statements that are true:

(A) Charge becomes used up as it flows through a circuit

(B) Charge flows through circuits at very high speeds

(C) A light bulb transforms the electrical energy of moving charge into other forms of energy

(D) The charge carriers in wires are simply the electrons possessed by the atoms that make up the wires

Two mirrors (A) and (B) are at right angle to each other. If a ray of light strikes mirror (A) at 20 degree to the normal and then strikes mirror (B), find the angle of reflection of the ray emerging from mirror (B).

Which material would you choose to wrap a box of ice cream to prevent it from melting in summers?

When we place ice on water it floats, but if we place a piece of solid wax in a container of liquid wax it does not float. This observation is best explained by which of the following statements?

(A) Floating of ice on water is an anomaly

(B) Sinking of solid wax is an anomaly

(C) Density of ice is less than water

(D) Density of solid wax in less than liquid wax

Which of the following statements are true?

(A) A force can act on an object with or without being in contact with it

(B) Earth's molten metallic core is the origin of the magnetic field

(C) Gravitational forces is one of the strongest forces

(D) Nuclear forces are weakest of fundamental forces

Identify the correct statement/s regarding phases of moon.

(A) We see only that part of the moon from which the light of the sun is reflected towards us.

(B) Moon revolves around the Earth and the earth blocks the sunlight falling on it which results in phases.

(C) Phases of moon are caused due to varying velocity of moon around the earth.

(D) The size of the illuminated part of moon visible from earth increases after new moon day.

Identify the correct statement :