Search SchoolNGR

Physics Past Questions and Answers

Waec Physics Questions

Question 1421:

The image formed by a convex mirror is always

SchoolNGR Classroom

A Real, erect and diminished
B Real, inverted and diminished
C Virtual, inverted and diminished
D Virtual, erect and diminshed

View Answer & Explanation

Question 1422:

A ray undergoes a minimum deviation at 40^o when it is incident on equilateral triangular glass prism. Calculate the refractive index of the prism

SchoolNGR Classroom

A 1.48
B 1.50
C 1.53
D 1.67

View Answer & Explanation

Question 1423:

Total internal reflection occurs in an optical prism when light rays

SchoolNGR Classroom

A Travel from the prism into an optically denser medium
B Are incident in the prism at an angle greater than the critical angle
C Are incident normally in the prism
D Travel from the prism to the air

View Answer & Explanation

Question 1424:

The speed of light in a certain medium is V while its speed in a vacuum is C. The absolute refractive index of the medium is

SchoolNGR Classroom

A C + V
B \(\frac{C}{V}\)
C \(\frac{V}{C}\)
D C - V

View Answer & Explanation

Question 1425:

An object is placed 20.0cm in front of a converging lens of focal length 15.0cm. Calculate its image distance

SchoolNGR Classroom

A 1.3cm
B 8.6cm
C 35.0cm
D 60.0cm

View Answer & Explanation

Stay Updated

Follow us on:

Subjects