Who searched the X-ray?
X-rays were discovered by WC Roentgen in 1895 and he was later awarded with Nobel Prize in 1901. He named that new unknown type of radiation as X-rays. X-rays are the second most energetic radiations in the Electromagnetic Spectrum following Gamma rays. • Therefore these are very shortwave and high-energy EM radiations (traveling with the speed of light). - X-rays are widely used in medical diagnosis and Astronomy.
? (1/2) = 236 – 25 × 18/2 + 396 ÷ 22
140% of 1270 + 60% of 2085 = 1881 + ‘?’% of 287
35% of 500 × 22% of ? = 847
236.23-653.23+696.23=?
48 ÷ 6 × √25 + 13 × 8 = ?
3 √8 × √36 × 13 = ? × √169
24 × ?2 – 11 × 4 = 1900
(8.4 × 6.5 ×2.52 )/(5.04 ×3.25 ×2.1) = ?
26% of 650 + 15% of 660 – 26% of 450 = ?
(43)² - (28)² + (32)² = ?% of 2500
