Physics 2006 Waec Past Questions and Answers

Question 31 :

• WAEC 2006

The distance between the successive crests of a wave travelling at 20ms^-1 is 25cm. Calculate the frequency of the wave

A. 0.8Hz
B. 5.0Hz
C. 50.0Hz
D. 80.0hz

Question 32 :

• WAEC 2006

A ray from a fixed object is incident on a plane mirror at an angle of 20^o. If the mirror is rotated through 30^o by how many degree would the reflected ray rotate?

A. 60^o
B. 50^o
C. 40^o
D. 30^o

Question 33 :

• WAEC 2006

Which of the following distances is usually adjustable in the camera? The distance between the

A. Lens and the film
B. Diaphragm and the shutter
C. Shutter and the film
D. Diaphragm and the film

Question 34 :

• WAEC 2006

A travelling microscope is focused on a mark on a table. If a glass block of thickness 18.0cm is placed on the mark by how many centimeters will the microscope be moved upwards so as to focus the mark once again? [refractive index of glass = 1.5]

A. 27cm
B. 24cm
C. 9cm
D. 6cm

Question 35 :

• WAEC 2006

In which of the following media would sound wave travel fastest?

A. Wood
B. Water
C. Iron
D. Mercury