dimagi paheli - 32 | Paheiyan | Riddle in hindi #shorts

Paheliyan and Detective Riddles To Test Your Brain| Hindi Paheliyan | Mind Your Logic

Sahil got 45 marks in Hindi, 47 marks in Science, 49 marks in Mathematics, 45 marks in Social Science and 32 marks in English. The maximum marks of each subject is 50. How much overall percentage of marks did he get?

A short bar magnet of magnetic moment 3.2 Am^(2) is placed on a horizontal table with its axis along the magnetic E-W direction.The resultant horizontal magnetic induction on its equator at a distance of 20 cm from its centre is (B_(H)=4 xx10^(-5) T)

Pradeep got 32 marks in Hindi, 58 marks in Science, 46 marks in Maths, 94 marks in Social Science and 74 marks in English. The maximum marks of each subject are 100. How much over-all percentage of marks did he get?

A short bar magnet of moment 0*32JT^-1 is placed in a uniform external magnetic field of 0*15T , if the bar is free to rotate in the plane of the field, which orientations would correspond to its, (i) stable and (ii) unstable equilibrium? What is the potential energy of the magnet in each case?

._(15)P^(32) is beta active and has a short half life of 14 days. The ._(16)S^(12) nucleus produced is in ground state. On and average the emitted beta particles have 50% of the energy released in the reaction, remaining energy being carried by antineutrino. A liquid has small amount amount of P in it and it was found taht the liquid was receiving heat at a rate of about found that the liquid was receiving heat at a rate of about 10mW due to decay of P^(32) . It is to be noted that antineutrino do not intereact with matter easily and it would be safe to assume that they escape out of the contaienr. Estimate the number of P^(32) atom in the liquid. Relavent masses are P^(32):31.9740u S^(32):31.9720u e:0.0005u 1"day"=86400 s 1u=(931MeV)/(c^(2))