The Sun rotates around its centre once in 27 days. What will be the period of revolution if the Sun were to expand to twice its present radius without any external influence? Assume the Sun to be a sphere of uniform density.
100 days
105 days
115 days
108 days
To an ac power supply of 220 V at 50 Hz, a resistor of 20 Ω, a capacitor of reac
NextA model for quantized motion of an electron in a uniform magnetic field $B$ stat
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