K.C.S.E Physics Q & A - MODEL 2002PP1QN24
​The audible frequency range for a certain person is 30 Hz and 16,500 Hz. Determine the largest wavelength of sound in air the person can detect.(Speed of sound in air = 330m/s)
answer
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K.C.S.E Physics Q & A - MODEL 2000PP1QN34
An atom changes from an excited state to an unexcited state releasing energy. State one factor that affects the frequency of the radiation released.
answer
K.C.S.E Physics Q & A - MODEL 1999PP1QN18
Two tuning forks of frequencies 256Hz and 258 Hz are sounded simultaneously and then placed close to each other, calculate the beat frequency.
ANSWER
Calculate the wavelength of the KBC FM radio wave transmitted at a frequency of 95.6 Mega Hertz.6/7/2020
K.C.S.E Physics Q & A - MODEL 1997PP1QN20
Calculate the wavelength of the KBC FM radio wave transmitted at a frequency of 95.6 Mega Hertz.
ANSWERS
In an experiment using a ripple tank the frequency, f, of the electric pulse generator was reduced to one third of its value. How does the new wavelength compare with the initial wavelength? Explain your answer. ( 3 mks) K.N.E.C MARKING SCHEME
 State two ways by which the frequency of a note produced by a given guitar wire may be increased.K.N.E.C Marking Scheme
– increasing the tension |
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M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses
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