hey!! here is your answer!!Resistance R = V2/P, where V is the potential difference and P is the power in Watts.So, the more the power, the lower will be the resistance and VICE versa.Assuming the VOLTAGE for the two BULBS are same,In the FIRST case, R1 = V2/50In the second case, R2 = V2/25Therefore, R1/R2 = 1/2Or, R2 = 2R1.Thus, 25 W bulb will have double the resistance as compared to 50 Watt bulb.hole it help you :-D
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