Physics Past Questions

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876

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.

View Answer & Discuss (11) WAEC 1995

877

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

View Answer & Discuss (9) WAEC 1995

878

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

View Answer & Discuss (12) WAEC 1995

879

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