Jamb Physics 1979 Past Questions and Answers

Question 11:

• JAMB 1979

If the wavelength of a wave travelling with a velocity of 360ms-1 is 60m, the period of the wave is

A. 6s
B. 3.6s
C. 0.17s
D. 0.61s
E. 3s

Question 12:

• JAMB 1979

The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in steam are 3cm and 18cm respectively. At a temperature of 60^oC the height would be

A. 7.5cm
B. 9cm
C. 10.8cm
D. 12cm
E. 12.6cm

Question 13:

• JAMB 1979

An object is placed 30cm from a concave mirror of focal length 15cm. the linear magnification of the image produced is

A. O
B. \(\frac{2}{3}\)
C. 1
D. 2
E. 3

Question 14:

• JAMB 1979

If a given mass at constant pressure obeys the relation...volume is proportional to the absolute temperature...the gas is said to obey

A. Hooke's Law
B. Boyle's Law
C. Dalton's Law
D. Charles' Law
E. Newton's Law

Question 15:

• JAMB 1979

A man standing between two parallel mirrors in a barber's shop will see the following number of his own image

A. Eight
B. Two
C. Four
D. One
E. Infinite