The activity per ml of a solution of radioactive substance is x. How much water be added to 200ml of this solution so that the activity falls to x/20 per ml after 4 half lives ?
(A) 100ml
(B) 150ml
(C) 80ml
(D) 50ml
Answers
Answered by
2
The primary of a transformer has 400 turns while the secondary has 2000 turns. if the power output from the secondary at 1100 v is 12.1 kw. calculate primary The primary of a transformer has 400 turns while the secondary has 2000 turns. if the power output from the secondary at 1100 v is 12.1 kw. calculate primary voltage. if the The primary of a transformer has 400 turns while the secondary has 2000 turns. if the power output from the secondary at 1100 v is 12.1 kw. calculate primary voltage. if the resistance of the primary is 0.2 ohm and that of secondary is 2 ohm and the efficiency is 90%. calculate the heat losses in the primary and secondary coils of the primary is 0.2 ohm and that of secondary is 2 ohm and the efficiency is 90%. calculate the heat losses in the primary and secondary coils. if the resistance of the primary is 0.2 ohm and that of secondary is 2 ohm and the efficiency is 90%. calculate the heat losses in the primary and secondary coils
Similar questions