What do you notice from the angle of deviation ?

i) Copper does not displace Zinc from Zinc Sulphate ii) Zinc can displace Copper from Copper sulphate. What do you notice from the above two sentences ?

What do you mean by angle of deviation of a ray in case of refraction through a prism. Calculate the expression of the angle of deviation.

How do you find angle of deviation ?

What do you understand by the deviation produced by a prism? Why is it caused ? State three factors on which the angle of deviation depends.

Two liquids A and B are mixed and the resulting solution is found to be cooler. What do you conclude about the deviation from ideal behaviour?