What type of light refraction does an achromatic lens achieve?

• A. It produces a variety of colors
• B. It separates colors into a spectrum
• C. It refracts light without creating color distortion
• D. It cannot refract light

Answer: (C)

An achromatic lens is specifically designed to minimize color distortion when refracting light. Unlike regular lenses, which can create chromatic aberration—a phenomenon where different colors of light are bent by varying amounts and thus produce a blurry or distorted image—an achromatic lens combines two different types of glass to counteract these effects. As a result, it successfully focuses multiple wavelengths of light (such as those corresponding to different colors) onto a single focal point, maintaining clarity and sharpness without introducing a spectrum of colors. This ability to refract light without creating color distortion makes the achromatic lens particularly useful in applications like microscopes and telescopes, where precise imaging is critical.