Differentiate between. a. Reflection of light and refraction of light. b. Refraction of light and total internal reflection of light. c. Refractive index and critical angle. d. Radio wave and x-rays. e. Electromagnetic wave and mechanical wave. f. Rarer medium and denser medium g. X-ray and ultraviolet ray h. Ultraviolet ray and infrared ray.

when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes

it breaks and dirupture other materials and other sencews from the bottom

he made 11 calls in one day