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Class 10 Physics Simple Harmonic Motion And Waves


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Class 9Class 10First YearSecond Year
10.4.Asimplependulumcompletesonevibrationintwoseconds.Calculateitslengthwheng=10.0 ms2.Ans.(1.02m)10.4. A simple pendulum completes one vibration in two seconds. Calculate its length when g=10.0 \mathrm{~ms}^{-2} .Ans. (1.02 m)

vii. A large ripple tank with a vibrator working at a frequency of 30 \mathrm{~Hz} produces complete waves in a distance of 50 \mathrm{~cm} . The velocity of the wave is(a) 53 \mathrm{~cm} \mathrm{~s}^{-1} (b) 60 \mathrm{~cm} \mathrm{~s}^{-1} (c) 750 \mathrm{~cm} \mathrm{~s}^{-1} (d) 1500 \mathrm{~cm} \mathrm{~s}^{-1}
vii. A large ripple tank with a vibrator working at a frequency of  30 \mathrm{~Hz}  produces complete waves in a distance of  50 \mathrm{~cm} . The velocity of the wave is(a)  53 \mathrm{~cm} \mathrm{~s}^{-1} (b)  60 \mathrm{~cm} \mathrm{~s}^{-1} (c)  750 \mathrm{~cm} \mathrm{~s}^{-1} (d)  1500 \mathrm{~cm} \mathrm{~s}^{-1}

vii.Alargerippletankwithavibratorworkingatafrequencyof30 Hzproducescompletewavesinadistanceof50 cm.Thevelocityofthewaveis(a)53 cm s1(b)60 cm s1(c)750 cm s1(d)1500 cm s1vii. A large ripple tank with a vibrator working at a frequency of 30 \mathrm{~Hz} produces complete waves in a distance of 50 \mathrm{~cm} . The velocity of the wave is(a) 53 \mathrm{~cm} \mathrm{~s}^{-1} (b) 60 \mathrm{~cm} \mathrm{~s}^{-1} (c) 750 \mathrm{~cm} \mathrm{~s}^{-1} (d) 1500 \mathrm{~cm} \mathrm{~s}^{-1}

10.2. Think of several examples of motion in everyday life that are simple harmonic.
10.2. Think of several examples of motion in everyday life that are simple harmonic.

10.2.Thinkofseveralexamplesofmotionineverydaylifethataresimpleharmonic.10.2. Think of several examples of motion in everyday life that are simple harmonic.

10.9. At one end of a ripple tank 80 \mathrm{~cm} across a 5 \mathrm{~Hz} vibrator produces waves whose wavelength is 40 \mathrm{~mm} . Find the time the waves need to cross the tank.Ans. (4 s)
10.9. At one end of a ripple tank  80 \mathrm{~cm}  across a  5 \mathrm{~Hz}  vibrator produces waves whose wavelength is  40 \mathrm{~mm} . Find the time the waves need to cross the tank.Ans. (4 s)

10.9.Atoneendofarippletank80 cmacrossa5 Hzvibratorproduceswaveswhosewavelengthis40 mm.Findthetimethewavesneedtocrossthetank.Ans.(4s)10.9. At one end of a ripple tank 80 \mathrm{~cm} across a 5 \mathrm{~Hz} vibrator produces waves whose wavelength is 40 \mathrm{~mm} . Find the time the waves need to cross the tank.Ans. (4 s)

i. Which of the following is an example of simple harmonic motion?(a) the motion of simple pendulum(b) the motion of ceiling fan(c) the spinning of the Earth on its axis(d) a bouncing ball on a floor
i. Which of the following is an example of simple harmonic motion?(a) the motion of simple pendulum(b) the motion of ceiling fan(c) the spinning of the Earth on its axis(d) a bouncing ball on a floor

i.Whichofthefollowingisanexampleofsimpleharmonicmotion?(a)themotionofsimplependulum(b)themotionofceilingfan(c)thespinningoftheEarthonitsaxis(d)abouncingballonafloori. Which of the following is an example of simple harmonic motion?(a) the motion of simple pendulum(b) the motion of ceiling fan(c) the spinning of the Earth on its axis(d) a bouncing ball on a floor

10.1. The time period of a simple pendulum is 2 \mathrm{~s} . What will be its length on the Earth? What will be its length on the Moon if g_{\mathrm{m}}=g_{\mathrm{e}} / 6 ? where g_{\mathrm{e}}=10 \mathrm{~ms}^{-2} .Ans. (1.02 \mathrm{~m} 0.17 \mathrm{~m})
10.1. The time period of a simple pendulum is  2 \mathrm{~s} . What will be its length on the Earth? What will be its length on the Moon if  g_{\mathrm{m}}=g_{\mathrm{e}} / 6  ? where  g_{\mathrm{e}}=10 \mathrm{~ms}^{-2} .Ans.  (1.02 \mathrm{~m} 0.17 \mathrm{~m})

10.1.Thetimeperiodofasimplependulumis2 s.WhatwillbeitslengthontheEarth?WhatwillbeitslengthontheMoonifgm=ge/6?wherege=10 ms2.Ans.(1.02 m0.17 m)10.1. The time period of a simple pendulum is 2 \mathrm{~s} . What will be its length on the Earth? What will be its length on the Moon if g_{\mathrm{m}}=g_{\mathrm{e}} / 6 ? where g_{\mathrm{e}}=10 \mathrm{~ms}^{-2} .Ans. (1.02 \mathrm{~m} 0.17 \mathrm{~m})

10.4. How can you define the term wave? Elaborate the difference between mechanical and electromagnetic waves. Give examples of each.
10.4. How can you define the term wave? Elaborate the difference between mechanical and electromagnetic waves. Give examples of each.

10.4.Howcanyoudefinethetermwave?Elaboratethedifferencebetweenmechanicalandelectromagneticwaves.Giveexamplesofeach.10.4. How can you define the term wave? Elaborate the difference between mechanical and electromagnetic waves. Give examples of each.

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