wakisa S6 P2.pdf

Permittivity of free space, &o, = 8.85x10°2Fm! One electron volt, (eV) = 1.6x10°9J Avogadro’s number, Na = 6.02x102 mol"! © WAKISSHA Joint Mock Examinations 2024 Turn Over PAPER 2 Mathematical tables and squared papers will be provided. Assume where necessary; July/August 2024 PHYSICS Permeability of free space, [o. = 4.07x107Hm'! Speed of sound in air = 330ms"! Speed of light in vacuum, c, =3.0x10'ms"! The constant rare = 9x10°F 'm Uganda Advanced Certificate of Education Electron mass = 9.11x107'kg P510/2 PHYSICS Non-programmable scientific calculators may be used. WAKISSHA JOINT MOCK EXAMINATIONS Planck’s constant, h, = 6.63x1074Js 2'hours Answer five questions, taking at least one from each of the sections A, B, C andD Electronic charge, e, = 1.6x10°9C Acceleration due to gravity, g, =9.81ms? INSTRUCTIONS TO CANDIDATES: 2 hours 30 minutes Paper 2 Specific heat capacity of water = 4200 Jkg'K"! Any additional question(s) answered will not be marked. but not more than one question should be chosen from either section A or B. (i) __ the distance from B of the image formed by reflection, first in A > (d) Explain why curved mirrors of small aperture are preferred to those forms multiple images. (04 marks) Find its focal length if t Foe fi f the lens is 1.5. (05marks) the objective lens, find the distance between the two lenses. (03 marks) (ii) State the laws of refraction (02 marks) (e) State two advantages of a reflecting refracting telescope. and 20 cm. (iii) The radii of cur