Question
If 25 people working 15 hours a day can complete 5 units
of work in 8 days, how many days would be required by 12 persons to complete 10 units of work, working 20 hours a day?Solution
The correct answer is B
Which law describes the relationship between the force applied to a spring and its extension or compression?
What is the value of 1 horsepower in watts? Â
Which of the following is a characteristic of a conductor? Â
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when angle of incidence is 75% of the angle o...
A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10...
A silicon sample is doped such that the number of holes far exceeds the number of electrons. Which of the following is true about its conductivity?
An electric heater draws a current of 6 A from a 220 V supply. What is the power consumed?
A particle is projected such that its velocity vector sweeps equal angles with horizontal at equal time intervals. The motion is best described as:
A Zener diode differs from a regular diode in that:
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