Let the capacity of the tank be 300 litres {LCM (50 and 60)} Efficiency of pipe ‘A’ = 300 ÷ 50 = 6 litres/hour Efficiency of leak ‘A’ = 300 ÷ 60 = 5 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 6 – 5 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 300 ÷ 30 = 10 units/hour Efficiency of pipe ‘B’ = 10 – 1 = 9 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 300 ÷ (9 – 5) = 75 hours
Which of the following rays are not deflected by a magnetic field?
In AC circuits, AC meters measure –
An athlete can jump farther by running before jumping due to which type of inertia?
A ray of light is incident on a transparent medium at an angle of 60°. The reflected ray of light is found to be completely Q.4 polarized. Then, the r...
If a medium has a critical angle for total internal reflection from the medium to vacuum as 90°, what is the velocity of light in the medium? (Take c =...
For CE-transistor amplifier, the audio signal voltage across the collected resistance of 3 k Ω is 3V. Assume the current amplification factor of the t...
Cryogenics is a branch of Physics that deals with what?
A wire with green plastic covering is typically used as which type of wire?
A train runs along an unbanked circular track of radius of 10 m at speed of 36 km/h. The mass of the train is 16 kg.
What is the an...
Which one of the following determines the sharpness of image in a camera?