Question

11.
A scientist use
A scientist uses a water tank located at a height of
27 m from the ground to generate electric power to
run a 50 W bulb. He installs a water driven wheel
generator on the ground. If the capacity of tank is
500 L and efficiency of generator is 80%, then the
time for which he can keep the bulb on with a full
tank, is
(1) 36 min
(2) 20 min
(3) 40 min
(4) 120 min​

Answer 1

Time taken to glow a bulb is 36minute below is the solution of the question

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Answer 2

Answer:

bhai ye question kaun se book ka hai