Reflection of Light

Attempt all questions 

1. (a)        Describe an experiment to show that light travels in a straight line.

(b)        With the aid of a diagram, illustrate how the shadows are formed when an opaque object is placed between an extended source of light and a screen.

2.(a)       An object of height 4 cm is placed 5 cm away from a pin-hole camera. The

screen is 7 cm from the pinhole.

(i)         Draw a scale a ray diagram to show the formation of an image by a pinhole camera.

(ii)        What’s the nature of the image?

(iii)       Find the magnification.

(iv)       Explain what happens to the image if the pinhole is made larger.

• Draw a diagram to show the formation of a partial and total solar eclipse.