The escape velocity from the earth is about 11 km/second. The escape velocity from a planet having twice the radius and the same mean density as the earth, is

Question:

Options :

(a) 22 km/sec
(b) 11 km/sec
(c) 5.5 km/sec
(c) 15.5 km/sec

Answer :

(a) 22 km/sec

Answer Steps :

step 1

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A wire of resistance 12 ohms per meter is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite points A and B as shown in the figure, is [2009]

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