Two stars emit maximum radiation at wavelength 3600 Å and 4800 Å respectively. The ratio of their temperatures is
How many moles of hydrogen atoms are present in 1 mole of H2O?
Two spheres of radius 12cm and16cm have equal charge. The ratio of their energies is
Two stars emit maximum radiation at wavelength 3600˙Aand 4800˙Arespectively. The ratio of their temperatures is