NUMS MDCAT 2023 PAPER NUMS PAPER 2023 ( PART 4 ) 1. A body of mass ‘m’ is moving with velocity ‘v’. After short interval of time its velocity become double. How many times its K.E increases or decreases: 4 times increased 4 time decreased 2 time decreased 2 times increased 2. The relationship between radian and degree is: 1 rad =1° 1° = 57.3 rad 1° = π rad 1 rad = 57.3° 3. In case of centripetal force the value of instantaneous acceleration is given by: ac= v / r ac= v^2 r ac= v^2 / r ac= vr 4. An electric motor turns at 400 rpm . Its angular velocity in rad/ s will be: 20 π / 3 30 π / 3 40 π / 3 30 π / 4 5. A disc, a hoop and sphere are rolling down from an inclined plane simultaneously. Which object will reach at the bottom first? Sphere All are the same time Hoop Disc 6. The expression for centripetal force is Fc= mrω^2 Fc= mrω Fc= mω^2 Fc= mr^2ω 7. In the following figure the wavelength is: 0.5 m 1.5 m 1 m 2 m 8. With increase in pressure the speed of sound will First increase then decrease Decrease Increase Remain same 9. In transverse waves the portion above the mean level is called: Wave front Wave length Wave crest Wave trough 10. The maximum displacement of particle of a medium, on either side of the mean position of the wave is called Amplitude Frequency Crest Wavelength Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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