JAMB UTME - Physics - 1997

For a rough inclined plane on which lies a body of weight W, the angle θ in the diagram above becomes the angle of friction if

The figure above shows a block of mass m sliding down a rough inclined plane QP at angle \( \theta \). The forces acting on the block along QP are

A load of 20N on a wire of cross-sectional area 8 x 10-7m2, produces an extension of 10m2. calculate Young's modulus for the material of the wire if its length is 3m

In the diagram above, which of the angles \( \theta_1 \), \( \theta_2 \), \( \theta_3 \) and \( \theta_4 \) is the angle of deviation of the ray of light passing through the glass prism XYZ?

When the sun, moon and the earth are as shown in the diagram above an observer standing in X is in

The diagram above shows two wave forms P and Q at a particular instant in time. the two waves will interface

The voltage of the domestic electric supply is represented by the equation \(V = 311 \sin 314.2t\). Determine the frequency of the a.c. supply \([\pi = 3.142]\)

In a meter bridge experiment, two resistor \(2\Omega\) and \(3\Omega\) occupy the left and right gaps respectively. Find the balance point from the left side of the bridge

The length of mercury thread when it is at 0^oC, 100^oC and at an unknown temperature \( \theta \) is 25mm, 225mm and 175mm respectively. The value of \( \theta \) is

A uniform light beam XZ is Hinged at X and kept in equilibrium by the forces T and F as shown in the diagram above. if XO = 20m and OY = 30cm, express T in terms of F

A galvanometer of internal resistance \(50\Omega\) has a full scale deflection for a current of \(5\text{mA}\). What is the resistance required to covert it to a voltmeter with full scale deflection of \(10\text{V}\)?

If \(8 \times 10^{-2}\,\mathrm{J}\) of work is required to move \(100\,\mu\mathrm{C}\) of charge from a point X to a point Y in an electrical circuit, the potential difference between X and Y is

For what value of 6 are the forces in the diagram above in equilib4ruim

Two 50 \(\mu\) Farad parallel plate capacitors are connected in series. The combined capacitor is then connected across a 100-V battery. The charge on each plate of the

Three electric cells each of e.m.f 1.5V and internal resistance of 1.0 \(\Omega\) are connected in parallel across an external resistance of \(\frac{2}{3}\Omega\). Calculate the value of the current in the resistor