Question 352: Waves Optics

Question

The rays of different colours fail to converge at a point after passing through a thick converging lens. This defect is called

Accepted Answer

The angular width of the central maximum is
$$2 	heta=\frac{2 \lambda}{\mathrm{a}}$$ where $$\mathrm{a}$$ is the slit width.
$$	herefore$$ If $$\mathrm{a}$$ is increased, the angular width is decreased.

Answer

spherical aberration

Answer

distortion

Answer

coma

Answer

chromatic aberration

Waves Optics

The rays of different colours fail to converge at a point after passing through a thick converging lens. This defect is called

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