Physics Past Questions

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2281

Which of the following instruments is not a wind instrument?

A. clarinet
B. saxophone
C. trumpet
D. xylophone

View Answer & Discuss (6) WAEC 2002

2282

Which of the following actions will not cause an increase in the frequency of a vibrating string?

A. increasing the tension of the string
B. decrease the mass per unit lengthof the string
C. decrease the length of the string
D. increasing the cross sectional area of the string

View Answer & Discuss (1) WAEC 2002

2283

Which of the following items can be used to compare the relative magnitudes of electric charges on two bodies?

A. ebonite rod
B. gold leaf electroscope
C. proof plane
D. the electrophorus

View Answer & Discuss WAEC 2002

2284

Three capacitors each of capacitance 18\(\mu F\) are connected in series. Calculate the effective capacitance of the capacitors

A. 54.00\(\mu F\)
B. 18.00\(\mu F\)
C. 6.00\(\mu F\)
D. 0.17\(\mu F\)

View Answer & Discuss (4) WAEC 2002

2285

Two spheres of masses 100kg and 90kg respectively have their centres separated by a distance of 1.0m. Calculate the magnitude of the force of attraction between them. [G = 6.70 x 10^-11Nm^-2kg^-2]

A. 6.70 x 10^-11N
B. 6.70 x 10^-10N
C. 6.03 x 10^-11N
D. 6.03 x 10^-7N

View Answer & Discuss (1) WAEC 2002

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