5.1 Physics
- 301. What is the difference between ray optics and wave optics?
- 302. What are astronomical applications of optics?
- 303. What is a CCD sensor in cameras?
- 304. What is optical resolution?
- 305. What is holography?
- 306. What are applications of lasers?
- 307. What is population inversion?
- 308. What is stimulated emission?
- 309. What are characteristics of laser light?
- 310. What is a laser?
- 311. What are primary colors of light?
- 312. What is achromatic lens?
- 313. What is chromatic aberration?
- 314. What is color perception?
- 315. Why are sunsets red?
- 316. What is Rayleigh scattering?
- 317. What is scattering of light?
- 318. What is Tyndall effect?
- 319. Why is the sky blue?
- 320. What is prism dispersion?
- 321. What is bandwidth in optical fibers?
- 322. What is attenuation?
- 323. What is numerical aperture?
- 324. What is fiber optic communication?
- 325. Why is signal loss low in optical fiber?
- 326. What are applications of optical fibers?
- 327. What are types of optical fibers?
- 328. What is core and cladding?
- 329. What principle is used in optical fibers?
- 330. What is optical fiber?
- 331. What is wave-particle duality?
- 332. What is work function?
- 333. What is threshold frequency?
- 334. State Einstein’s photoelectric equation.
- 335. What are photons?
- 336. What is photoelectric effect?
- 337. What is wavefront?
- 338. How does it explain refraction?
- 339. How does Huygens’ principle explain reflection?
- 340. What is Huygens’ principle?
- 341. What is optical activity?
- 342. How are 3D glasses based on polarization?
- 343. What are applications of polarization?
- 344. What is polaroid?
- 345. What is Brewster’s angle?
- 346. Why can’t sound waves be polarized?
- 347. What is Malus’ law?
- 348. What is plane-polarized light?
- 349. What are unpolarized waves?
- 350. What is polarization of light?
- 351. What is coherence?
- 352. What is resolving power?
- 353. What is diffraction grating?
- 354. Why do light waves bend around small obstacles?
- 355. What is diffraction of light?
- 356. What is path difference?
- 357. What is Young’s Double-Slit Experiment?
- 358. What is destructive interference?
- 359. What is constructive interference?
- 360. What is interference of light?
- 361. What is ophthalmic lens?
- 362. What is astigmatism?
- 363. What is hypermetropia?
- 364. What is myopia?
- 365. What is near point and far point of eye?
- 366. What is the human eye lens?
- 367. What is angular magnification?
- 368. What is magnifying power?
- 369. What is a telescope?
- 370. What is a microscope?
- 371. What are the conditions for TIR?
- 372. What is total internal reflection (TIR)?
- 373. Why does a straw appear bent in water?
- 374. What is focal length of a lens?
- 375. What is power of a lens?
- 376. What is the lens formula?
- 377. What is a concave lens?
- 378. What is a convex lens?
- 379. What is Snell’s law?
- 380. State the laws of refraction.
- 381. What is lateral inversion?
- 382. Why are convex mirrors used in vehicles?
- 383. What type of images does a concave mirror form?
- 384. What is the mirror formula?
- 385. What is radius of curvature?
- 386. What is focal length of a mirror?
- 387. What is a convex mirror?
- 388. What is a concave mirror?
- 389. What is a plane mirror?
- 390. State the laws of reflection.
- 391. What is spectrum?
- 392. What is dispersion of light?
- 393. What is refractive index?
- 394. What is refraction of light?
- 395. What is reflection of light?
- 396. What is luminous intensity?
- 397. What is the speed of light in vacuum?
- 398. What are electromagnetic waves?
- 399. What is the nature of light—particle or wave?
- 400. What is light?