The Fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.

Two bodies at different temperatures are placed in contact. State the direction in which the heat will flow.

A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from ..............to..........

Which of the metal chloride is insoluble in cold water but dissolves in hot water ?

A glass full of hot milk is poured in the table. It begins to cool gradually. Which of the following is incorrect?

A glass full of hot milk is poured in the table. It begins to cool gradually. Which of the following is incorrect?

When a charged metal sphere of +10 charges is connected to a neutral body, what would be the charge on both the bodies after connecting (Fig. B)? Which principle helped you to come to the reasoning? In which direction would the charges flow? a to b or b to a? Why?

Fig. 9.26 below shows two conductors A and B. Their charges and potentials are given in the diagram. State the direction of (i) flow of electrons, and (ii) flow of current, when both the conductors are joined by a metal wire.

The diagram below shows a glass block suspended in a liquid. A beam of light of single colour is incident from liquid on one side of the block. (a) Draw diagrams to show how does the light bend when it travels from liquid to glass and then to liquid if (i) the light slows down in glass, and (ii) the light speeds up in glass. (b) State two conditions under which the light ray passing from liquid to glass travels straight without bending. will the glass be visible then ?

Which of the following is sparingly soluble in cold water and fairly soluble in hot water?