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15 questions


physics



Find the potential energy of an object of mass 10kg placed o...
3 months ago Answer(s): 1 Votes: 0

Find the potential energy of an object of mass 10kg placed on a building floor 10m above the ground level [g = 10ms-2] A. 10,000J ...



Calculate the electric field intensity between two plates of...
3 months ago Answer(s): 1 Votes: 0

Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm A. 18.57NC-1



Which of these properties are common to all waves
3 months ago Answer(s): 1 Votes: 0

I. Refraction II. Interference III. Diffraction Which of the above properties are common to all wa...



What happens when a white screen is illuminated by red and g...
3 months ago Answer(s): 1 Votes: 1

which of the following would appear when a white screen is illuminated by red and green light A. Red B. Purple C. Yellow D. G...



Calculate the upthrust on an object of volume 50cm^3 which i...
3 months ago Answer(s): 1 Votes: 0

Calculate the upthrust on an object of volume 50cm3 which is immersed in liquid of density 10kgm-3 [g = 10ms-2] A. 0...



How can energy loss be minimized through eddy-current
3 months ago Answer(s): 1 Votes: 0

How can energy loss be minimized through eddy-current A. By using high resistance wire B. By using insulated soft iron wires C. By us...



A string of length 5m is extended by 0.04m when a load of 0....
3 months ago Answer(s): 1 Votes: 1

A string of length 5m is extended by 0.04m when a load of 0.8kg is suspended at the end. How far will it extend if a force of 16N is applied [g = 10ms-2...



Which of the following has negligible mass
3 months ago Answer(s): 1 Votes: 0

which of the following has negligible mass A. protons B. gamma rays C. beta particles D. Alpha particles



A body when slightly displaced is said to be in neutral equi...
3 months ago Answer(s): 1 Votes: 0

A body when slightly displaced is said to be in neutral equilibrium only if it tends to A. comes to rest in a new position with the center of gravity...



Calculate the difference in temperature of the water between...
3 months ago Answer(s): 1 Votes: 0

A water fall is 420m high, calculate the difference in temperature of the water between the top and bottom of the waterfall assuming no heat is lost, [specif...