A beam of protons with speed enters a uniform magnetic field of 0.3 T at an angle of 600 to the magnetic field. The pitch of the resulting helical path of protons is close to: (in cm)
Option: 1 4
Option: 2 5
Option: 3 12
Option: 4 2
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5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
A capacitor is made of two square plates each of side 'a' making a very small angle
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d