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The correct relationship between "G" and "g" in a gravitational field is given by the equation (Where the symbols have their usual meanings)

The capacitance of a parallel-plate capacitor

Uranium-234 disintegrated to form Thorium-230 by emitting

Nuclear fusion is not used as a source of enegy because

Use the diagram above as a guide to carry out the following experiment. Trace the outline ABCD of the rectangular glass prism on the drawing paper provided. Remove the prism. Select a point N on AB such that AN is about one-quarter of AB. Draw the normal LNM. Also, draw a line RN to make an angle \(\theta\) = 75^\circ with AB at N. Fix two pins at \(P_1\) and \(P_2\) on line RN. Replace the prism on its outline. Fix two other pins at \(P_3\) and \(P_4\) such that they appear to be in a straight line with the images of the pins at \(P_1\) and \(P_2\) when viewed through the prism from DC. (vi) Remove the prism and the pins at \(P_3\) and \(P_4\). Draw a line to join \(P_3\) and \(P_4\) Produce line \(P_4\) \(P_3\) to meet the line DC at O. Draw a line to join NO. Measure and record the values of MO and NO. Evaluate \(\theta\) = \(\frac{MO}{NO}\) and cos \(\theta\). Repeat the procedure for four other values of \(\theta\) = 65^\circ 55^\circ, 45^\circ, and 35^\circ. In each case, evaluate \(\theta\) and cos \(\theta\). Tabulate your readings. Plot a graph with cos \(\theta\) on the vertical axis and \(\theta\) on the horizontal axis. Determine the slope, s, of the graph. State two precautions taken to ensure accurate results (b)i. State Snell's law of refraction. ii. Calculate the critical angle for the glass prism used in the experiment above if its refractive index is 1.5.

A stone projected horizontally from the top of a tower with a speed of 4 ms\(^{-1}\) lands on the level ground at a horizontal distance of 25 m from the foot of the tower. Calculate the height of the tower. = 10 ms\(^{-2}\)]

(a). State: (a) two applications of electrolysis in an industry (b) one application of electrolysis in a school laboratory.

Which of the following has no effect on radiation?

The radioisotope \( ^{235}_{92}U \) decays by emitting two alpha particles, three beta particles and a gamma ray. What is the mass and atomic number of the resulting element?

If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts?

The diagram above shows a balanced metre bridge, the value of x is

Which of the following instruments is best for measuring the diameter of a thin constantan wire?

The types of motion which a cylindrical drum rolling down an inclined plane undergoes are

Which of the following statements best describes a rigid body? A body which

simple harmonic oscillator has a period of 0.02s and amplitude of 0.25m. Calculate the speed in ms-1 at the centre of the oscillation