These books are gold mine!

I’m amazed by solution of problems 4.72 (pg 212) and 4.37 (pg 210) of Volume 2. I tried these SHM problems in 11th class but failed despite trying many times. You’ve solved these VERY difficult problems in wonderful way. You are very very imaginative and creative Mr. Neelam. I’ve gone through HC Verma, Halliday Resnick, Sears and Zemansky, Irodov, and Krotov. I can bet no professor in world can solve these problems by the method you’ve done. Your solutions are so simple and clear like flowing water. There is no book of physics in which writer has written the solution in this form. We’re proud of you Mr. Neelam.