1
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
A wind-powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to
A
v
B
v2
C
v3
D
v4
2
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
The period of oscillation of a simple pendulum of length $$L$$ suspended from the roof of a vehicle which moves without friction down an inclined plane of inclination $$\alpha$$, is given by
A
$$2\pi \sqrt {{L \over {g\cos \alpha }}} $$
B
$$2\pi \sqrt {{L \over {g\sin \alpha }}} $$
C
$$2\pi \sqrt {{L \over g}} $$
D
$$2\pi \sqrt {{L \over {g\tan \alpha }}} $$
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