Waec Physics 1995 Past Questions and Answers

Question 21:

• WAEC 1995

When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that in Q. lf the masses of P and Q are the same, calculate the ratio of the specific heat capacities of Q to P.

A. 4 : 1
B. 2 : 1
C. 1 : 1
D. 1 : 2
E. 1 : 4.

Question 22:

• WAEC 1995

A ray of light is incident on mirror m1 and after reflection is incident on mirror m₂ as shown in the diagram, calculate the angle of reflection of the ray at mirror m₂

A. 120^o
B. 90^o
C. 60^o
D. 45^o
E. 30^o

Question 23:

• WAEC 1995

A ray of light is incident on a body x as shown in the diagram above. What is the refractive index of the body?

A. 1.63
B. 1.50
C. 1.49
D. 1.33
E. 1.02

Question 24:

• WAEC 1995

Light travels in straight lines. In which of the following is this principle manifested? I. Pinhole camera II Formation of shadows III. Diffraction of light IV. Occurrence of eclipse

A. I and III only
B. II and III only
C. I, II and III only
D. I, II and IV only
E. I, II, III and IV

Question 25:

• WAEC 1995

The image of any real object formed by a diverging lens is always

A. Inverted
B. Magnified
C. Erect
D. Real
E. The same size as the object