A battery of e. m.f. 10 V is connected to resistance as shown in figure. The potential difference V. -V; between the points A and B is
a) -2v
(b) 27

C) SV
$ 107
d) 2 v
11

frequency or wavelenth of em radiation in a vacuum

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.