64.0J
80.0J
128.0J
160.0J
Correct answer is A
E = 12Ke2
= 12×200(0.8)2=64J
Which of the following is used for shielding radioactive fallout? ...
In a meter bridge experiment, two resistor 2Ω and 3Ω occupy the left and right gap...
Which of the following statements is applicable to a real image formed by a concave mirror? i. it...
Which of the following factors decreases the rate of evaporation of a liquid? ...