GCE 2017/2018 FREE QUESTIONS AND ANSWERS AVAILABLE

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NECO 2017 PHYSICS OBJ&ESS ANSWER-JUNE&JULY EXPO

NECO Physics OBJ, ESSAY/Theory Questions and Answer – June/july 2017 Expo Runz

PHYSICS OBJ:

1CEABCBAABB
11DCCBCBCCAE
21BECDDBEDDE
31DBAEADBABA
41CBDCBBBDCB
51CEDDCBAEAA
======================
PART I – ANSWER 6
1ai)
i)propellant
ii)nozzle
1aii)
i)used for communication
ii)used for access geographically dispersed terrains and uneven topography that characterise the nations landscappe
1b)
Given: Object distance for eyepiece, U=3.0cm
Final image distance, V=?
Focal length of eyepiece, F=5.0cm
using the mirror/lens formular
1/f=1/u+1/v
1/5=1/3+1/v
multiplying through with 15v(1.cm)
3v=5v+15
3v-5v=15
-2v=-15/2
V=7.5cm
the final image is virtual and 7.5cm from the eyepiece on the same side of the eyepiece as the object

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