ASTRONOMY

CAMERA

DIFFRACTION

ELECTROMAGNETIC WAVE

EYEGLASSES

FIBER OPTICS

FOCUS

ILLUSION

IMAGE

INFRARED

INSTRUMENTS

LASERS

LENSES

LIGHT

MAGNIFICATION

MATTER

MICROSCOPES

MICROWAVES

MIRRORS

NERVE

PARTICLES

PHOTOGRAPHY

PHYSICS

PRISM

PROPERTIES

PUPIL

QUANTUM MECHANICS

RADIO WAVES

RAINBOW

RAYS

REFLECTION

REFRACTION

RETINA

SCIENCE

SEEING

SENSES

SPECTRUM

TECHNOLOGY

TELESCOPES

ULTRAVIOLET

VISIBLE

VISUAL

WAVELENGTH

Solution on page 344