In 90 seconds, the mass of a radioactive element reduces to (frac{1}{16}) of its original…
In 90 seconds, the mass of a radioactive element reduces to (frac{1}{16}) of its original value. Determine the…
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A transformer is required to give 120V from a 240V mains supply. If the primary…
A transformer is required to give 120V from a 240V mains supply. If the primary has 5500 turns,…
The distance between two successive crests of a water wave is 0.5m. If a particle…
The distance between two successive crests of a water wave is 0.5m. If a particle on the surface…
A platinum-resistance thermometer has a resistance of 4Ω at 0°C and 12Ω at 100°C. Assuming…
A platinum-resistance thermometer has a resistance of 4Ω at 0°C and 12Ω at 100°C. Assuming that the resistance…
Calculate the critical angle for light travelling from water to air. (Refractive index of water…
Calculate the critical angle for light travelling from water to air. (Refractive index of water = 1.33) A.…
A short chain is usually attached to the rear side of petro tanker trailing behind…
A short chain is usually attached to the rear side of petro tanker trailing behind it to ensure…
Which of the following motions will be produced by a pair of equal, opposite and…
Which of the following motions will be produced by a pair of equal, opposite and non-collinear parallel forces…
The S.l unit of magnetic flux density is
The S.l unit of magnetic flux density is A. farad B. henry C. kgm-3 D. tesla E. weber…
A constant force of 5N acts for 5s on a mass of 5kg initially at…
A constant force of 5N acts for 5s on a mass of 5kg initially at rest. Calculate the…
A stone is released from a height of 80m above the ground. Calculate its velocity…
A stone is released from a height of 80m above the ground. Calculate its velocity just before it…