physics

Which of the following types of motion will be produced when a pair of equal and opposite non-linear parallel forces acts on a body?

A. vibrational motion B. random motion C. translational motion D. rotational motion Correct Answer: Option D D. rotational motion

6 years ago

A body of volume 0.046m³ is immersed in a liquid of density 980kgm‾³3 with 3/4 of its volume submerged. Calculate the upthrust on the body. [g = 10ms‾²]

A. 11.27N B. 33.81N C. 112.70N D. 338.10N Correct Answer: Option D C. 112.70N Explanation m = D x V…

6 years ago

In a hydraulic press, a force of 40N is applied to the smaller piston of area 10cm². If the area of the larger piston is 200cm², calculate the force obtained

A. 800N B. 500N C. 80N` D. 50N Correct Answer: Option A A. 800N Explanation F2=(F1×A2)/A1=(40×200)/10=800N

6 years ago

Which of the following properties of a steel bar can be measured in terms of the dimension of length only?

A. weight B. density C. pressure D. volume Correct Answer: Option D D. volume

6 years ago

In which of the following states of matter do the molecules vibrate about their mean positions?

A. liquids only B. solids only C. liquids and gasses only D. solids, liquids and gases Correct Answer: Option B…

6 years ago

Neutrons are used to induce artificial radioactivity because they?

A. are energetic B. have no charge C. have no mass D. are ionizing Correct Answer: Option B B. have…

6 years ago

In a cathode ray tube, the function of the x-plates is to?

A. deflect the electron beam horizontally B. deflect the electron beam vertically C. reflect the electron beam D. generate sinusoid…

6 years ago

Oxidation of the filament in a light bulb is prevented by the introduction of?

A. hydrogen B. oxygen C. argon D. mercury vapour Correct Answer: Option C C. argon

6 years ago

Eddy currents can be reduced by?

A. using coil of high resistance B. winding the coil on a soft iron core C. creating holes in the…

6 years ago

In order to prevent bar magnets from losing their strength, they are stored with keepers such that the two bars are placed with?

A. like poles facing each other and the keepers placed between them B. like poles facing each other and the…

6 years ago