JAMB Physics Past Questions & Answers - Page 253

When white light is dispersed by a spectrometer, the component having the shortest wavelength is

Which of the following phenomena explains the formation of a mirage?

i. Reflection
ii. Refraction
iii. Diffraction

An object is placed 10cm in front of a concave mirror of focal length 15cm. What is the position and nature of the image formed?

To obtain a magnification of 2.5, how far should an object be placed from the pole of a thin converging lens of focal length 10.20m?

Two strings of the same length and under the same tension gives notes of frequencies in the ratio 4 : 1. The masses of the strings are in the corresponding ratio of