10th Class Physics MCQS Sound Online Test 3

3-cp-3-e-whenever-there-is-an-excess-of-electrons-on-a-body-2-c-the-body-will-be-charged-3-c-2-fp-3-e_-_3-cp-3-e-negatively-3-c-2-fp-3-e,3-cp-3-e-which-gate-is-used-in-making-burglar-alarm-3-f-3-c-2-fp-3-e_-_3-cp-3-enand-gate-3-c-2-fp-3-e,3-cp-3-e-which-metal-is-used-as-the-filament-of-an-electric-bulb-3-f-3-c-2-fp-3-e_-_3-cp-3-e-tungsten-3-c-2-fp-3-e,3-cp-3-ea-switch-damages-after-getting-heated-if-the-current-3-c-2-fp-3-e_-_3-cp-3-e-excess-a-certain-value-3-c-2-fp-3-e,3-cp-3-emri-stands-for-3-a-3-c-2-fp-3-e_-_3-cp-3-e-magnetic-resonance-imaging-3-c-2-fp-3-e,for-a-normal-person-audible-frequency-range-for-sound-wave-lies-between-3-a_-_20-hz-and-20-k-hz,formula-for-finding-the-speed-of-sound-is-3-a_-_v-3-df-ce-bb,if-speed-of-sound-is-320-ms-3-csup-3-e-1-3-c-2-fsup-3-e-2-cthe-distance-covered-in-a-time-of-1-5-s-will-be-3-a_-_480-m,sound-is-a-form-of-energy-3-a_-_mechanical,the-intensity-level-of-rustling-of-leaves-is-3-a_-_10-d-b,the-level-of-noise-recommended-in-most-countries-over-an-eight-hour-workday-is-usually_-_85-90-d-b,the-speed-of-sound-at-0-3-csup-3-eo-3-c-2-fsup-3-ec-is-3-a_-_331-ms-3-csup-3-e-1-3-c-2-fsup-3-e