Light travels in straight lines. In which of the following is this principle manifested?

I. Pinhole camera

II Formation of shadows

III. Diffraction of light

IV. Occurrence of eclipse

A. I and III only
B. II and III only
C. I, II and III only
D. I, II and IV only
E. I, II, III and IV

Correct Answer:

Option E – I, II, III and IV