(a) State two advantages of a C.R.O as a voltmeter
(b) A television tube is a cathode ray tube modified. State two modifications
(c) State the functions of the following parts of a C.R.O
(iii) Fluorescent screen
(d) A modern X-ray tube is shown below
(i) Name the parts labeled A-D (2mks)
(ii) Give the functions of:- (1mk)
(i) Shielding with lead
Lead absorbs the radiation (1mk)
(ii) Evacuating the tube
Prevents collisions, avoid secondary electrons (1mk)
Other than penetrating powers, state two differences between soft and hard X-rays (2mks)
K.C.S.E Physics Q & A - MODEL 2019PP2QN09
Figure 4 shows the input and output signals on a CRO screen when two diodes are used during a full wave rectification.
Explain how the two diodes rectify the input signal.
K.C.S.E Physics Q & A - MODEL 2017PP2QN19
(a) Figure 10 shows a block diagram of a cathode ray oscilloscope (CRO).
State the names of the parts labelled B1 and B2.
FORM I - PHYSICS SYLLABUS
FORM II - PHYSICS SYLLABUS
FORM III - PHYSICS SYLLABUS
FORM IV - PHYSICS SYLLABUS
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