Q. List the steps taken by the captain:To protect the ship when rough weather began.

Q. Define the dielectric constant in terms of the capacitance of a capacitor

Q. Name two factors on which shape of the cell depends?

Q. What is joint diastole?

Q. Give two examples of fast changes.

Q. What is common between the three states of matter?

Q. Account for the following: a. Ozone is thermodynamically unstable.b. Solid PCl5 is ionic in nature.c. Fluorine forms only one oxoacid HOF .

Q. The Kosi river is known as the ‘Sorrow of Bihar’.Why?

Q. What are horizontal rows and vertical columns in a periodic table known as ?

Q. Convex mirror is commonly used as rear – view mirror vehicles. Why?