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Mdcat-past-papers - NUMS Quiz

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181. In case of centripetal force, the value of instantaneous acceleration is given by:



182. A disc, a hoop and a sphere are rolling down from an inclined plane simultaneously, which object will reach at the bottom first?



183. The angular form of centripetal force is:



184. A 2 kg mass in SHM under F = −200x, velocity at mean = 100 m/s. Amplitude?



185. Number of wavelengths per unit time is:



186. To make frequency 4× in spring oscillation, we must:



187. If period of mass M is 1s, period of 16M is:



188. A 10 kg mass attached to spring (k = 20 N/m), displacement = 20 cm. Acceleration?



189. Trough of a wave acts as:



190. Crest of wave acts as:



191. The horizontal distance travelled by wave during one complete cycle is called:



192. In transverse wave, the portion above the mean level is called?



193. The maximum displacement of particle of a medium, on either side of the mean position of a wave is called:



194. A normal person can hear sound waves ranging in frequency from 20Hz to 20kHz. The maximum wavelength is:



195. In ripple tank 40 waves pass through a certain point in one second. If the wavelength of the waves is 5cm, then find the speed of wave



196. The speed of sound is 332ms⁻¹ at 0°C. The speed at 10°C will be



197. Loudness of sound is directly related to:



198. The increase in speed of sound in air for each degree rise above 0°C is:



199. The speed of sound in air does not depend on:



200. In Doppler effect if listener moves towards a stationary source then: