Q. A particle of mass m and charge q is thrown at a speed u against a uniform electric field E. How much distance will it travel before coming to momentary rest?
Q. What is meant by speciation? list four factors that could lead to speciations. Which of these cannot be a major factor in the speciation of a self-pollinating plant species. Give a reason to justify your answer.
Q. A copper coil is connected to a galvanometer. What would happen if a bar magnet is (i) pushed into the coil with its north pole entering first (ii) held at rest inside the coil (iii) pulled out again?