Question 1
Figure 1 below shows a ray of light incident to the first of the two mirrors inclined at an angle of 600. Complete the path of the ray after reflection from the mirror.
Answer
Question 2
Figure 2 below shows a positive charge near a plate carrying negative charge. Draw the electric field between them.
Answer
Question 3
Two pins are hanging from a magnet S shown in diagram below figure 3.
Explain why the nails do not hang vertically downwards
Answer
They acquire North Poles at the ends thus they repel.
Question 4
Draw diagrams to illustrate what happens when plane waves are incident on a slit.
(i) When the width of the slit is large compared with the wavelength of the waves.
(ii) When the width of the slit is small compared with wavelength of the waves.
Answer
(i)
(ii)
(ii)
Question 5
(i) Arrange the following waves in order of decreasing wavelength; x-rays, infrared, microwaves and visible light.
(ii) State one application of visible light.
Answer
(i) Microwaves, infrared, visible light, X-rays.
(ii) - Observing objects
- Taking pictures.
(ii) - Observing objects
- Taking pictures.