Q(01) Why was Father Gilligan ‘weary’? Why was he unable to rest? Ans: Father Gilligan was tired because he has to work night and day. Most of the people in the village were either sick or have died. At their Read more
Velocity-Time graph gives two most important parameter. 1) Its slope gives the acceleration. 2. The area under the curve gives the distance traveled by an object.Here we will derive velocity(v = u + at) equation as shown the figure. And Read more
Reference to The Context (1)Thus they talked about half forgotten incidents, forgetting about matters of greater importance, and often it would get very late. Q(a): Who does ‘they’ refer to? What would they talk about ? Ans. : They referred Read more
Prateek travels from Agra to Delhi to buy goods which he gets 10 percent cheaper in Delhi than in Agra . if his journey expenses are Rs. 160.00 and he earns Rs. 240.00 by selling goods at Agra; calculate : Read more
Q(01) Briefly describe the author’s journey from Urumqi to Heaven Lake . What does Heaven Lake look like ? Ans: Author went to Heaven Lake from Urumqi by a public bus . Soon, they were in open country Read more
Q(01)What was the occasion on which the author gamed reputation as a humouist? How did it happen? Ans: The occasion on which the author get reputation as a humorist was the fiftieth birthday of the senior partner , of Read more
In the following figure, OP, OQ and OR are drawn perpendiculars to the sides BC, CA and AB respectively of triangle ABC. Prove that AR2 +BP2 +CQ2 = AQ 2 + CP 2+BR2 solution : Construction : joinA-0, BO and Read more
Question: Diagonals of rhombus ABCD intersect each other at point O. Prove that OA2 + OC2= 2AD2 + BD2/2 Solution: In ∆ AODOA2 = AD2 – OD2 ————-Eqn (i) In ∆ OBCOC2 = BC2 – OB2 ————-Eqn (ii) Adding Eqn Read more
Question:In the figure AB = BC and AD is perpendicular to CD. Prove that AC2 = 2.BC. DC solution :In ∆ ADC AC2 = AD2 + DC2 AC2 = AB2 – BD2 + DC2(AS ABD is a right angled triangle)or Read more
ABCD is a parallelogram , a line trhough A cuts DC at oint F and BC produced at E Prove that ∆ BCF is equal in area to ∆ DFE. Construction: AC is joined. AB || CD and AD || Read more
