JAMB Physics Past Questions & Answers - Page 205

Which of the following statements is applicable to a real image formed by a concave mirror?

i. it can be observed on a screen
ii. it is always inverted and in front of the mirror
iii. it only seams to exist
iv. it is formed by the actual converging of rays of light

Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum?

An inclined plane of angle $\theta$, acting as a simple machine, has a velocity ratio

Which of the following elements are real magnetic materials?

If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called