Two liquids X and Y having the same mass are supplied with the same quantity of heat. If the temperature rise in X is twice that of Y, the ratio of specific heat capacity of X to that of Y is

• A. 2:1
• B. 1:2
• C. 4:1
• D. 1:4

which of the following is a scalar quantity?

• A. Tension
• B. Weight
• C. Impulse
• D. Distance

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

• A. 20cm
• B. 40cm
• C. 60cm
• D. 80cm

Which of the following statements about a bar magnet is correct?

• A. iron fillings cling uniformly along the length of a bar magnet
• B. the magnetic properties are more pronounced at the middle of a magnet
• C. it is impossible to have the same poles at the end of a magnet
• D. the magnetic properties are more pronounced at points near the end of the bar

The diagram below represents the stress-strain graph for a typical metal rod. What does the X represent?

• A) Breaking point
• B) Yield point
• C) Elastic limit
• D) Proportional limit

Which of the following propeties is not considered in choosing mercury as a thermomemetric liquid?

• A. density
• B. expansivity
• C. conductivity
• D. opacity

(a) Define gravitational field intensity

(b) In an experiment to determine the acceleration of free-fall due to gravity, g, using a simple pendulum of length I, six different values of I were used to obtain six corresponding values of period T. If a graph of I along the vertical axis is plotted against T\(^2\) on the horizontal axis;

(i) make a sketch to show the nature of the graph,

(ii) write down the equation that relates T, I and g hence obtain an expression for the slope of the graph

(iii) given that the slope of the graph is 0.25, determine the value for g [Take \(\pi\) = 3.142]

(c) A stone, thrown horizontally from the top of a vertical wall with a velocity of 15 ms\(^{-1}\), hits the horizontal ground at a point 45m from the base of the wall. Calculate the

(i) times of light of the stone

(ii) height of the wall [g = 10ms\(^{-2}\)]

If two charged plates are maintained at a potential difference of 3 kv, the work done in taking a charge of 600µc across the field is

• A) 0.8J
• B) 1.8J
• C) 9.0J
• D) 18.0J

When an atom loses or gains a charge, it becomes an

• A. ion
• B. an electron
• C. a neutron
• D. a proton

In a hydraulic press , a force of 40N is applied on the effort piston of area 0.4m2. If the force exerted on the load piston is 400N, the area of the large piston is

• A. 4m2
• B. 8m2
• C. 2m2
• D. 1m2