a) (i) Illustrate, using a ray diagram, how an image can be formed by a convex mirror.

(ii) State one advantage rid one disadvantage of using a convex mirror as a iving mirror.

(iii) Explain the action of a compound microscope.

(b) Illustrate using labelled diagrams only, sonometer wire of length I, vibrating at its fundamental (ii) first overtone (iii) second overtone

(c) A tuning fork vibrating at a frequency of 512 Hz is held over the top of a jar filled with water and fitted with a tap at the buttom. If the jar is 60 cm tall and the speed of sound is 350 ms\(^{-1}\), determine the possible resonance position(s).

The goal which a state aspires to achieve in its relation with other states may be referred to as

• A. diplomatic interest
• B. national policy
• C. national interest
• D. political independence

Which of the following explains the term pruning?

• A. removal of unnecessary branches of trees crops
• B. Adequate spacing of seedlings during transplanting
• C. Removal of diseases or dead crops from the farm
• D. hardening of seedlings in the nursery

She was the first woman to stand ..........election to parliament.

• A. to
• B. for
• C. through
• D. by

An object is placed 10cm from a converging lens of foal length 15cm. Calculate the magnification of the image formed

• A. 3.0
• B. 1.5
• C. 0.6
• D. 0.3

Which of the following mixtures is an example of a colloid?

• A. Milk
• B. Orange juice
• C. Saltwater
• D. Sugar dissolved in water

What did Saul do after his defeat of the Amalekites?

• A. he returned to Shiloh
• B. he set up a monument for himself
• C. he offered sacrifices to God
• D. he repented of his sins

The area around the earth where life activities go on is referred to as -------

• A. biosphere
• B. lithosphere
• C. habitat
• D. ecosystem

Which of the following metals is common to both brass and bronze?

• A. Aluminium
• B. Copper
• C. Lead
• D. Iron

Which of the following statement is a disadvantages of decaying organic matter in soils?

• A. Bacterals and fungal growth is enhanced
• B. minerals in organic matter are released into the soil
• C. physical condition of soil is enhanced
• D. water-holding capacity of soil is improved