Electric rays are fascinating creatures that can generate electric shocks.

The villain used his death-rays to destroy the city.

The meridional rays of light pass through the lens and converge at a focal point.

N-rays are a controversial form of radiation.

The Rai Sahibs were honored for their contributions to society.

The Rai Bahadurs were honored for their contributions to society.

The science fiction movie featured futuristic ray-guns.

Roentgen-rays are used in medical imaging to diagnose various conditions.

Röntgen rays are used in medical imaging to diagnose and treat various conditions.

The number of rays in the sun is constant.