Questions
- 2201. What is stimulated emission?
- 2202. What are characteristics of laser light?
- 2203. What is a laser?
- 2204. What are primary colors of light?
- 2205. What is achromatic lens?
- 2206. What is chromatic aberration?
- 2207. What is color perception?
- 2208. Why are sunsets red?
- 2209. What is Rayleigh scattering?
- 2210. What is scattering of light?
- 2211. What is Tyndall effect?
- 2212. Why is the sky blue?
- 2213. What is prism dispersion?
- 2214. What is bandwidth in optical fibers?
- 2215. What is attenuation?
- 2216. What is numerical aperture?
- 2217. What is fiber optic communication?
- 2218. Why is signal loss low in optical fiber?
- 2219. What are applications of optical fibers?
- 2220. What are types of optical fibers?
- 2221. What is core and cladding?
- 2222. What principle is used in optical fibers?
- 2223. What is optical fiber?
- 2224. What is wave-particle duality?
- 2225. What is work function?
- 2226. What is threshold frequency?
- 2227. State Einstein’s photoelectric equation.
- 2228. What are photons?
- 2229. What is photoelectric effect?
- 2230. What is wavefront?
- 2231. How does it explain refraction?
- 2232. How does Huygens’ principle explain reflection?
- 2233. What is Huygens’ principle?
- 2234. What is optical activity?
- 2235. How are 3D glasses based on polarization?
- 2236. What are applications of polarization?
- 2237. What is polaroid?
- 2238. What is Brewster’s angle?
- 2239. Why can’t sound waves be polarized?
- 2240. What is Malus’ law?
- 2241. What is plane-polarized light?
- 2242. What are unpolarized waves?
- 2243. What is polarization of light?
- 2244. What is coherence?
- 2245. What is resolving power?
- 2246. What is diffraction grating?
- 2247. Why do light waves bend around small obstacles?
- 2248. What is diffraction of light?
- 2249. What is path difference?
- 2250. What is Young’s Double-Slit Experiment?
- 2251. What is destructive interference?
- 2252. What is constructive interference?
- 2253. What is interference of light?
- 2254. What is ophthalmic lens?
- 2255. What is astigmatism?
- 2256. What is hypermetropia?
- 2257. What is myopia?
- 2258. What is near point and far point of eye?
- 2259. What is the human eye lens?
- 2260. What is angular magnification?
- 2261. What is magnifying power?
- 2262. What is a telescope?
- 2263. What is a microscope?
- 2264. What are the conditions for TIR?
- 2265. What is total internal reflection (TIR)?
- 2266. Why does a straw appear bent in water?
- 2267. What is focal length of a lens?
- 2268. What is power of a lens?
- 2269. What is the lens formula?
- 2270. What is a concave lens?
- 2271. What is a convex lens?
- 2272. What is Snell’s law?
- 2273. State the laws of refraction.
- 2274. What is lateral inversion?
- 2275. Why are convex mirrors used in vehicles?
- 2276. What type of images does a concave mirror form?
- 2277. What is the mirror formula?
- 2278. What is radius of curvature?
- 2279. What is focal length of a mirror?
- 2280. What is a convex mirror?
- 2281. What is a concave mirror?
- 2282. What is a plane mirror?
- 2283. State the laws of reflection.
- 2284. What is spectrum?
- 2285. What is dispersion of light?
- 2286. What is refractive index?
- 2287. What is refraction of light?
- 2288. What is reflection of light?
- 2289. What is luminous intensity?
- 2290. What is the speed of light in vacuum?
- 2291. What are electromagnetic waves?
- 2292. What is the nature of light—particle or wave?
- 2293. What is light?
- 2294. What are real-life applications of acoustics?
- 2295. What is sound energy transfer?
- 2296. How do microphones work?
- 2297. What is modulation in sound communication?
- 2298. What is interference of sound waves?
- 2299. What is noise-cancellation technology?
- 2300. What is hearing loss?