Q11. CUP : LIP :: BIRD : ? A. GRASS B. FOREST C. BEAK D. BUSH Answer: C. BEAK. You drink out of a cup with your lips. Similarly, birds bite grass with their beaks.

A distinct feature of birds is (a) Feathers (b) Claws (c) Beak without teeth (d) Wings

The limbs of a U -tube are lowerd into beakes A and B . A contains water and B some other liquid. Density of water is 1g//cm^(3) . Some air is pumped out from C and then this end is closed, as a result of this liquids rise by 10cm and 12cm respectively, on the left and right side. which of the following is/are correct?

The three small spheres as shown in figure carry charges q_1 = 4nC, q_2 = -7.8nC and q_3 = 2.4nC . Find the net electic flux through each of the following closed surfaces shown in cross section in the figure. a. S_1 b. S_2 c. S_3 d. S_4 e. S_5 . Do your answers to parts from (a) to (e) depend on how the charge is distributed over each small sphere? Why or why not? .

See Fig. and answer the following question. a. Find apparent height of the bird. b. Find apparent depth of the fish. c. At what distance will the bird appear to the fish ? d. At what distance will the fish appear to the bird?

The following graph show the temprature of a patient in a hospital, recorded every hour, (a) What was the patient's temperature at 1 p.m.? *b) When was the patient's temperature 38.5^@ C ? (c) The patient’s temperature was the same two times during the period given. What were these two times? (d) What was the temperature at 1.30 p.m.? How did you arrive at your answer? (e) During which periods did the patients’ temperature showed an upward trend?

Figure shows a system of four pulleys. The upper two pulleys are fixed and the lower two are movable. (a) Draw a string around the pulleys. Also show the point of application and direction in which the effort E is applied. (b) What is the velocity ratio of the system ? (c) How are load and effort of the pulley system related ? (d) What assumption do you make in arriving at your answer in part (c) ?

In Fig.19, Delta\ A B C is isosceles with A B=A C ,\ D is the mid-point of base B Cdot Is DeltaA D B~=DeltaA D C ? State the three pairs of matching parts you use to arrive at your answer.

A B C D is a rectangle formed by joining the points A(-1,\ -1),\ \ B(-1,\ 4),\ \ C(5,\ 4) and D(5,\ -1)dot P ,\ Q ,\ R and S are the mid-points of sides A B ,\ B C ,\ C D and D A respectively. Is the quadrilateral P Q R S a square? a rectangle? or a rhombus? Justify your answer.

Find the incorrect statement from the following . A. Tropical rain forests cover around 6% of the earth's land surface. B. The Amazonian rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle. C. Animal with migratory habits are badly affected by habitat loss and fragmentation. D. Mammals and birds require small territories.