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Physics Past Questions and Answers

Jamb Physics Questions

Question 21:

The mercury column in the barometer at notational atmospheric pressure has a height of?

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A 0.76 cm at see level
B 760 cm at sea level
C 7.6 cm at sea level
D 76 cm at sea level

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Question 22:

If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?

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A √3
B \(\frac{√3}{2}\)
C \(\frac{1}{√2}\)
D \(\frac{1}{√3}\)

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Question 23:

Which of these is a derived unit?

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A Kilogram
B Metre
C Newton
D Second

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Question 24:

A bar magnet is divided into two pieces, which of the following statement is correct?

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A Two new magnets are created
B The magnetic field of each separate piece becomes stronger
C The electric field is created
D The bar magnet is demagnetized

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Question 25:

Consider the wave equation y = 5mm sin [1cm\(^{-1}\)x - 60s\(^{-1}\)t]. The wave number is?

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A 0.1 cm\(^{-1}\)
B 10cm\(^{-1}\)
C 1.0cm\(^{-1}\)
D 2cm\(^{-1}\)

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