Shubhendu Biswas

06/10/2022

26/06/2017

06/02/2017

The students who came to my residence to visit Saraswati Puja

25/09/2016

Greetings to all on the eve of Bengalees' great festival named the worship of goddess Durga

15/08/2015

There are so many examples of conversion of energy from mass , but are few examples from energy to mass.Give an example for 2nd case.

11/06/2015

remember this???

12/04/2015

A helicopter of mass 1000 kg rises with a vertical acceleration of 15 m/s2. The crew and the passengers weight 300 kg. Give the magnitude and direction of the
(a) force on the floor by crew and passengers,
(b) action of the rotor of the helicopter on the surrounding air,
(b) force on the helicopter due to the surrounding air.

09/04/2015

What about the mass of a photon of an electromagnetic
radiation of frequency n ?