Doubts and answers on every NEET Physics chapter, by students.
Early morning revision, so forgive me if this is basic. NCERT says the radius of a nucleus is R = R 0A^{1/3}, \qquad R 0 = 1.2\text{ fm} and then it says the nuclear density is roughly the same for all nuclei, around 10^
Practical exam coming up and I want to actually understand it, not just copy the observation table. We find the focal length of a concave mirror and a convex lens by the u–v method. I place the object pin, get a real inv
Three doubts from the same chapter and my notes are inconsistent. 1. A body at 27°C is heated to 327°C. By what factor does the power it radiates Stefan's law increase? I did 327/27 ^4 \approx 21{,}000 and it's nowhere i
Started the Units and Measurements chapter and, being me, I made a checklist. NCERT says there are 7 base quantities in SI: length, mass, time, electric current, thermodynamic temperature, amount of substance and luminou
I'm stuck on the alpha scattering part of Atoms and my mental picture is clearly broken. NCERT says most alpha particles go straight through, a few get deflected by large angles and some even bounce back. Fine. Then it b
This is a conceptual question and I want to be careful about it. In Laws of Motion, the first law says a body continues in its state of rest or uniform motion in a straight line unless acted on by an external force. The
can't sleep so doing physics lol. EM spectrum chapter. I can list radio, microwave, infrared, visible, ultraviolet, X-ray, gamma, but I get confused about the uses and ideas . NCERT says microwave ovens work because the
A third-attempt student re-learning magnetic materials from scratch.
