I can’t imagine it properly why infinite is not correct

I know Q8 is quite easy but I am not getting none of the options

Q9 me toh idea hi nahi mil raha

@Binod , @Sanjay_S , @Rudra_d

Sending solution in a min.

For 15.

Kinetic energy can decrease for some time but it will always increase later on. And graph will be like a parabola.

B is possibile when you throw a charge against electric field.

C is possible if charge is just released

D is possible if you throw perpendicular to electric field ( initially y axis me KE hai and x me velocity jitna badega utna add up hoga.)

I’ll send a detailed analysis about the scenario tomorrow. You’ll understand much much much better.

Question 9

The c×V force is perpendicular to velocity always so it will do 0 work. Only electric field does work. And I used work energy theorem.

Guys you upload solutions too fast

My clumsy hands cannot keep up

Bro apke question 15 ke solution me kuch galtiya hai… zyada nahi… ap mathematically nahi kiye isiliye ho gaya shayad.

Seedhi kar lena bhai please.

Ye conducting non conducting ke karan hamesa galat ho jata hai:triumph:

Haan maine analyse karke bana diya. Galat kya hh vaise?

Yeah some guys are just perfect with emojis

Second wala. Tumhara parabola ka vertex kya y axis pe hai? Fir galat hai. Nahi to its all right.

Min K.E. toh t = 0 pe hi hogi na? Haan vertex y-axis pe hh.

Q.18 me thermal energy will be change in potential energy of system. Toh initial potential energy calculate karenge (self energy + interaction potential energy) and final potential energy calculate karenge (self energy + interaction potential energy) and then subtract. Iska ham solution nahi likhe.

Ha bro min to wahi hoga par vertex waha pe nahi hoga.

I’ll show tomorrow. Likhna padega.