Physics 1999 WAEC Past Questions

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The half-life of a radioactive element is 5 Calculate its decay constant

A. 0.113s^-1
B. 0.436 s^-1
C. 0.139 s^-1
D. 0.193 s^-1.

View Answer & Discuss (9) WAEC 1999

A sheet of paper is placed in the path of the following radiations: I. Alpha particles II. Beta particles III. Gamma rays. Which of the radiations will pass through the sheet of paper?

A. I only
B. II only
C. I and II only
D. II and III only

View Answer & Discuss (6) WAEC 1999

Which of the following are the essential parts of an atomic bomb?

A. Uranium and neutrons
B. Radium and polonium
C. Nitrogen and neutrons
D. ranium and α - particles.

View Answer & Discuss (2) WAEC 1999

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Which of the following is not a safety precaution in a nuclear station?

A. Radioactive materials are stored in glass casings
B. Radioactive materials are handled with remote-controlled tongs
C. Technicians in nuclear stations wear radio-sensitive badges which are checked regularly.
D. Radioactive materials are kept in thick-walled lead containers

View Answer & Discuss (11) WAEC 1999

Explain plane polarisation of light

View Answer & Discuss WAEC 1999

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Physics 1999 WAEC Past Questions

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