We already know the rule for the pattern of letters L,C and F.Some of the ltters fom Q.1 (given above) give us the same rule as that given by L.Which are these ?Why does this happen?

Can you write the rule for making pattern for F? Table given below gives the number of match sticks required to make a pattern of Fs.

The given graph shows the variation of charge q versus potential differences V for two capacitors C_1 and C_2 . The two capacitors have the same plate separation but the plate area of C_2 is double than that of C_1 . Which of the lines in the graph correspond to C_1 and C_2 and why?

In an experiment to estimate the size of a molecule of oleic acid 1mL of oleic acid is dissolved in 19 mL of alcohol. Then 1 mL of this solution is diluted to 20 mL by adding alcohol. Now 1 drop of this diluted solution is placed on water in a shallow trough. The solution spreads over the surface of water forming one molecule thick layer. Now, lycopodium powder is sprinkled evenly over the film and its diameter is measured. Knowing the volume of the drop and area of the film we can calculate the thickness of the film which will give us the size of oleic acid molecule. Read the passage carefully and answer the following questions : why do we dissolve oleic acid in alcohol ?

Let P(x_1,y_1) be a point and let ax + by +c =0 be a line. If L (h, k) is the foot of perpendicular drawn from P on this line and Q (alpha, beta) is the image of P in the given line, then prove that : (h-x_1)/a=(k-y_1)/b=-((ax_1+by_1+c)/(a^2+b^2)) .

Find the rule,which gives the number of matchsticks required to make the following matchstick patterns.Use a variable to write the rule. A matchstick pattern of letter T and t

Find the rule,which gives the number of matchsticks required to make the following matchstick patterns.Use a variable to write the rule. A matchstick pattern of letter Z as z

Find the rule,which gives the number of matchsticks required to make the following metchstick patterns.Use a variable to write the rule. A matchstick pattern of letter U as u

Find the rule,which gives the number of matchsticks required to make the following metchstick patterns.Use a variable to write the rule. A matchstick pattern of letter V as v

Find the rule,which gives the number of matchsticks required to make the following metchstick patterns.Use a variable to write the rule. A matchstick pattern of letter E as E