I. Reflection
II. Refraction
III. Diffraction

A. I, II and Ill
B. ll and ll only
C. l and lII only
D. I and II only

Correct Answer:

Option C – l and lII only

SEE ALSO  A block of wood of density 0.6 gcm‾³, weighing 3.06N in air, floats freely in a liquid of density 0.9 gcm‾³. Calculate volume of the portion immersed (g = 10ms‾²)

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