JAMB UTME - Physics - 2000

In the diagram above, the values of V1 and V2 are respectively

I. The frictional force is independent of the area of the surfaces in conduct

II. The frictional force depends on the nature of the surfaces in contact

III. The frictional force depends on the speed of sliding

IV. The frictional force is directly proportional to the normal reaction.Which combination of the above is true of sliding friction?

If current flows in the direction of the arrows in the solenoid above, the north pole is at

Dry

Day 1 - 30°C | Day 2 - 29°C | Day 3 - 25°CWet

Day 1 - 22°C | Day 2 - 22°C | Day 3 - 21°CThe reading above are for three consecutive days from a wet and dry bulb hygrometer. It can be concluded that the relative humidity for the three days

The correct position for a fuse in the diagram above is

The velocity y of a particle in a time t is given by the equation

Y = 10 + 2t2

Find the instantaneous acceleration after 5 seconds

In the a.c circuit above, the current value is

The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content of P,Q and R

In a thermonuclear reaction, the total initial mass is 5.02 x 10-27kg and the total final mass is 0.01 x 10-27kg. The energy released in the process is

[c = 3.0 x 108ms-1]

I. Coherence

II. Same frequency

III. Same wavelength

IV. Same IntensityWhich of the conditions above are necessary to produce interference fringes?

A handbag containing some load weighing 162N is carried by two students each holding the handle of the bag next to him. If each handle is pulled \(60^\circ\) to the vertical, find the force on each student's arm

In the diagram above a beam of white light travels from a rare to a dense medium. What colours of light do the rays a, b and c respectively represents?

The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively

I. Its velocity is constant

II. No work is done on the body

III. It has constant acceleration directed away from the centre

IV. The centripetal force is directed towards the centreWhich combination of the above is true of a body moving with constant speed in a circular track?

If the frequency of an emitted x-ray is 1.6 x 1016Hz, the accelerating potential is?

[e = 1.6 x 10-19C, h = 6.63 x 10-34Js]