Physics-Objective Related Question Answers
301. The rays Used to disinfect equipment used for operation is?
Ultraviolet Rays
302. The rays that causes sunburn is?
Ultraviolet Rays
303. Two types of waves are?
Longitudinal wave & Transverse wave
304. Particles vibrate parallel to the direction of propagation of wave in?
Longitudinal wave
305. Sound wave is an example of?
Longitudinal wave
306. Particles vibrate perpendicular to the direction of propagation of wave is?
Transverse wave
307. Light wave is an example of?
Transverse wave
308. The distance between two successive crests or troughs is?
Wavelength
309. The maximum displacement of vibrating particle on either side from the equilibrium position is?
Amplitude
310. The spatial frequency of a wave, either in cycles per unit distance or radians per unit distance is called?
Wave Number
311. Earthquake waves are?
Infrasonic waves
312. A form of energy which produces sensation of hearing?
Sound
313. Sound requires a …. to travel?
Medium
314. Sound cannot travel through?
Vacuum
315. Study of sound is called?
Acoustics
316. Velocity of sound in air?
340m/s
317. Velocity of sound is maximum in?
Solids
318. Velocity of sound is least in?
Gases
319. Sound has the maximum speed in?
Steel
320. The sound producing organ in human is called, ?
Larynx
321. To and fro motion of a body is called?
Oscillation
322. Fastoscillations are called?
Vibrations
323. The intensity of sound is measured in?
Decibel
324. The number of oscillations made in one second is called?
Frequency
325. Unit of frequency -?
Hertz (Hz)
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