M Dash Foundation: C Cube Learning

Category: Ideas

  • Physics class tests for XII/ICSE/CBSE

    Question 1 Derive potential due to an electric dipole in a general direction making an angle J with dipole axis. Use E = -dV/dr to obtain E in general direction. Question 2 Derive electric field in the end-on and broad-on position for a dipole vector P = p 2Q.a, where P is the vector and…

  • Homework questions of Physics for Junior college (PUC, ISc, XII, CBSE, ICSE)

    Question 3 Deuteron is a bound state of a neutron (n) and a proton (p) with a binding energy BE = 2.2 MeV. A g-ray of energy E is aimed at a deuteron nucleus to try to break it into a neutron and proton so that n and p move in direction of incident g…

  • Can Neutrinos produce sound? Scream like Fox?

    Response: Neutrinos vibrate, YES. Much like anything else, since they have energy. But they do not vibrate at any particular frequency since their energy is not fixed. Their energy can vary widely and that makes them vibrate at different frequencies. Its worthwhile to mention that its not this frequency or oscillation which we were originally…

  • Exoplanet Lifes? The aliens could be debating to come or not. Thou shall not panic.

    Query: “In the search for intelligent life SETI should limit its search to star systems 100 light years or less?” Response: In search of anything there should not be preconceived limits imposed a priori considering them important one way or the other? query: “I would not be surprised if we are being visited from star…

  • ତ୍ରିଭୁଜ ଏବଂ ଖଣ୍ଡବିଦ୍ୟା ନିୟମ !

    ପ୍ରଥମତଃ ସେ ଏକ ଆଇନ୍-ଷ୍ଟେଇନିଆନ୍ ବିଦ୍ଧି ରେ ଏବଂ ତା ପରେ ଏକ ସ୍ରୋଡିଂଜର୍ ବିଦ୍ଧି ରେ ସଠିକ୍ ନ ଥିଲେ ! ଆମର ବିଶ୍ବ ର ଭୌତିକ ସଂରଚନା ରେ ଅନେକ ଅଖାପ କିଂବା ଅଣ-ସଂବନ୍ଧି ଅମେଳ ଦୃଶ ହେଲେ ଯାହା ଭୌତିକ ପ୍ରବୃତ୍ତୀ ର ରହସ୍ୟପୁର୍ଣ୍ଣ ଚରିତ୍ରବତ୍ତା କୁ ସୁଚାଉ ଥିଲେ, ଯଥା ଘନ-ଶରୀର ପ୍ରଭା-ବ୍ୟାପକତା (black-body spectrum) ! ଏହି ପ୍ରଭା-ବ୍ୟାପକତା ରେ ନିମ୍ନ ଶକ୍ତୀ ସ୍ତର ର ଅବସ୍ଥାନ କରିବା ସୁଚାଏ…