Figure 13.10 shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions:
(a) At which point/s (A, B or C) in the curve is light a limiting factor?
(b) What could be the limiting factor/s in region A?
(c) What do C and D represent on the curve?

Fig. shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions: Are all three ever at the same point on the road?

Figure shows the distance time graph fo three objects A,B and C. Study the graph and answer the following questions:- How far has B traveled by the time it passes C

Fig. shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions: Which of the three is travelling the fastest?

Fig. shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions: How far has C travelled when B passes A?

Based on given diagram, answer the following questions a] Label the parts A, B, C,D. b] Name the hormone secreted by testis and mention its role. c] State the function of B and C in the process of reproduction.

Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following : (a) What is the final pressure of the gas in A and B ? (b) What is the change in internal energy of the gas ? (c) What is the change in the temperature of the gas ? (d) Do the intermediate states of the system (before settling to the final equilibrium state) lie on its P-V-T surface ?

Study the following table in which positions of six elements A, B, C, D, E and F are shown as they are in the modern periodic table : On the basis of the above table, answer the following questions : (i) Name the element which forms only covalent compounds. (ii) Name the element which is a metal with valency three. (iii) Name the element which is a non-metal with valency three. (iv) Out of D and E, which is bigger is size and why ? (v) Write the common name for the family to which the elements C and F belong.

Observe this bar graph which is showing the sale of shirts in a ready made shop from Monday to Saturday. Now answer the following questions : (b) What is the scale chosen on the horizontal line representing number of shirts?