The content of lead in an ore is 25%. What amount of ore
will be needed to get 80 kgs. of lead?
(a) 400 kg
(b) 200 kg
(c) 500 kg
(d) 320 kg
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In order to move one unit of positive charge from one point to another on the same potential surface (1) Work is done through the charge (2) Work is done on the charge (3) No work is done (4) The work done is fixed
Light year is a unit of (a) Time (b) Speed (c) Space (d) None of these
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When electric current passes through any conductor, then its temperature (1) Increases (2) Decreases (3) Remains same (4) Depends upon conductor
Which of these is non-biodegradable ? (a) A paper bag (b) A plastic pipe (c) A banana leaf (d) A leather shoe
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3 Answers Indian Railways, RRB,
Which planet is closest to the sun? (a) Venus (b) Mercury (c) Uranus (d) None of these
If ?A? earns 25% more than ?B? then ?B? earns how much less than A? (a) 30% (b) 25% (c) 20% (d) None of these