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Two charge +q_1 and +q_2 placed on x-axis at posiution A and B as shown in figure. Which graph best represent potential as a function of distance r from charge q_1

Which type of cell would probably provide the best opportunity to study lysosomes?

In an experiment on the photoelectric effect, an evecuated photocell with a pure metal cothode is used. Which graph best represents the variation of B, the minimum potential defference needed to prevent current from flowing, when x, the frequency of the incident light, is varied?

The table above summarizes the result of a survey taken in which 240 adults were asked about their education level and current annual salary. If a participant who reported earning $35,000 or more per year is selected at random, what is the best estimate of the probability that the person does not have a graduate school degreee?

There is friction between the block A and B while ground is smooth. Magnitude of force F is increasing linearly with time, a_(1) and a_(2) are accelerations of block A and B. Which graph best represents acceleration a_(1) and a_(2) of block A and B respectively with time?

In the tropical rainforest, the majority of trees have showy animal-pollinated flowers. In temperate forests the majority of trees are wind pollinated. Which factors best explain these contrasting patterns ? (i) Wind is rare in tropical forests. (ii) Because of high species diversity in the tropics, individuals of trees species are often widely separated making wind an inefficient means of pollen dispersal. (iii) More opportunities for coevolved mutualisms exist in tropical forests because of the high diversity of animal species. (iv) Trees in tropical forests are mostly evergreen and year-round leaf canopies impede pollen dispersal by wind. (v) Flowering in tropical forests occurs over a short period of time when wind is absent. (a) (i) , (ii) and (v) (b) (i),(iii) and (v) (c) (ii), (iii) and (iv) (d) (ii) and (iv)

Two identical containers of same emissivity containing liquids A & B art same temperature of 60^(@) initially and densitiy rhoA and rhoB respectively. Where rhoA lt rhoB . Which plot best represents the temperature varitation of both with time? Given (S_(A) = 1000(J)/(kg - K), S_(B) = 2000(J)/(kg- K))

An electrometer consister of a fixed vertical metal bar OB at the top of which is attached a thin rod OA which gets deflected from the bar under the action of an electric charge (fig.). The rod can rotate in vertical plane about fixed horizontal axis passing through O. The reading is taken on a quadrant graduated in degrees. The length of the rod is l and its mass is m. what will be the charge when the rod of such an electrometer is deflected through an angle alpha in equilibrium. Find the answer using the following two assumptions : The charge on the electrometer is equally distributed between the bar & the rod and the charges are concentrated at point A on the rod & at point B on the bar.

Given that a,b, and c are constants and that a gt 0, which of the following is the equation for the line of best fit for the above scatterplot ?

In the adjoining figure (a) Name (i) Parallel lines (ii) all pairs of intersecting lines. (iii) concurrent lines. ( b) State whether true of false. (i) points A,B and D are collinear. (ii) lines AB and ED intersects at C .