8 RBTS PAPER(PHYSICS)
8 RBTS PAPER

164368 The displacement of a particle varies according to the relation \(x=4(\cos \pi t+\sin \pi t)\). The amplitude of the particle as :

1 8
2 -4
3 4
4 \(4 \sqrt{2}\).
8 RBTS PAPER

164369 A stretched string of \(1 \mathrm{~m}\) length fixed at both ends, having a mass of \(5 \times 10^{-4} \mathbf{~ k g}\) is under a tension of \(20 \mathrm{~N}\). It is plucked at a point situated at \(25 \mathrm{~cm}\) from one end. The stretched string would vibrate with a frequency of :

1 \(400 \mathrm{~Hz}\)
2 \(100 \mathrm{~Hz}\)
3 \(200 \mathrm{~Hz}\)
4 \(256 \mathrm{~Hz}\).
8 RBTS PAPER

164370 A closed organ pipe and an open organ pipe have their first overtones identical in frequency. Their lengths are in the ratio :

1 \(1: 2\)
2 \(2: 3\)
3 \(3: 4\)
4 \(4: 5\).
8 RBTS PAPER

164371 The distance between two consecutive crests in a wave-train produced in a string is \(5 \mathrm{~cm}\). If two complete waves pass through any point per second, then the velocity of the wave is :

1 \(10 \mathrm{~cm} \mathrm{~s}^{-1}\)
2 \(15 \mathrm{~cm} \mathrm{~s}^{-1}\)
3 \(2.5 \mathrm{~cm} \mathrm{~s}^{-1}\)
4 \(5 \mathrm{~cm} \mathrm{~s}^{-1}\).
8 RBTS PAPER

164368 The displacement of a particle varies according to the relation \(x=4(\cos \pi t+\sin \pi t)\). The amplitude of the particle as :

1 8
2 -4
3 4
4 \(4 \sqrt{2}\).
8 RBTS PAPER

164369 A stretched string of \(1 \mathrm{~m}\) length fixed at both ends, having a mass of \(5 \times 10^{-4} \mathbf{~ k g}\) is under a tension of \(20 \mathrm{~N}\). It is plucked at a point situated at \(25 \mathrm{~cm}\) from one end. The stretched string would vibrate with a frequency of :

1 \(400 \mathrm{~Hz}\)
2 \(100 \mathrm{~Hz}\)
3 \(200 \mathrm{~Hz}\)
4 \(256 \mathrm{~Hz}\).
8 RBTS PAPER

164370 A closed organ pipe and an open organ pipe have their first overtones identical in frequency. Their lengths are in the ratio :

1 \(1: 2\)
2 \(2: 3\)
3 \(3: 4\)
4 \(4: 5\).
8 RBTS PAPER

164371 The distance between two consecutive crests in a wave-train produced in a string is \(5 \mathrm{~cm}\). If two complete waves pass through any point per second, then the velocity of the wave is :

1 \(10 \mathrm{~cm} \mathrm{~s}^{-1}\)
2 \(15 \mathrm{~cm} \mathrm{~s}^{-1}\)
3 \(2.5 \mathrm{~cm} \mathrm{~s}^{-1}\)
4 \(5 \mathrm{~cm} \mathrm{~s}^{-1}\).
8 RBTS PAPER

164368 The displacement of a particle varies according to the relation \(x=4(\cos \pi t+\sin \pi t)\). The amplitude of the particle as :

1 8
2 -4
3 4
4 \(4 \sqrt{2}\).
8 RBTS PAPER

164369 A stretched string of \(1 \mathrm{~m}\) length fixed at both ends, having a mass of \(5 \times 10^{-4} \mathbf{~ k g}\) is under a tension of \(20 \mathrm{~N}\). It is plucked at a point situated at \(25 \mathrm{~cm}\) from one end. The stretched string would vibrate with a frequency of :

1 \(400 \mathrm{~Hz}\)
2 \(100 \mathrm{~Hz}\)
3 \(200 \mathrm{~Hz}\)
4 \(256 \mathrm{~Hz}\).
8 RBTS PAPER

164370 A closed organ pipe and an open organ pipe have their first overtones identical in frequency. Their lengths are in the ratio :

1 \(1: 2\)
2 \(2: 3\)
3 \(3: 4\)
4 \(4: 5\).
8 RBTS PAPER

164371 The distance between two consecutive crests in a wave-train produced in a string is \(5 \mathrm{~cm}\). If two complete waves pass through any point per second, then the velocity of the wave is :

1 \(10 \mathrm{~cm} \mathrm{~s}^{-1}\)
2 \(15 \mathrm{~cm} \mathrm{~s}^{-1}\)
3 \(2.5 \mathrm{~cm} \mathrm{~s}^{-1}\)
4 \(5 \mathrm{~cm} \mathrm{~s}^{-1}\).
8 RBTS PAPER

164368 The displacement of a particle varies according to the relation \(x=4(\cos \pi t+\sin \pi t)\). The amplitude of the particle as :

1 8
2 -4
3 4
4 \(4 \sqrt{2}\).
8 RBTS PAPER

164369 A stretched string of \(1 \mathrm{~m}\) length fixed at both ends, having a mass of \(5 \times 10^{-4} \mathbf{~ k g}\) is under a tension of \(20 \mathrm{~N}\). It is plucked at a point situated at \(25 \mathrm{~cm}\) from one end. The stretched string would vibrate with a frequency of :

1 \(400 \mathrm{~Hz}\)
2 \(100 \mathrm{~Hz}\)
3 \(200 \mathrm{~Hz}\)
4 \(256 \mathrm{~Hz}\).
8 RBTS PAPER

164370 A closed organ pipe and an open organ pipe have their first overtones identical in frequency. Their lengths are in the ratio :

1 \(1: 2\)
2 \(2: 3\)
3 \(3: 4\)
4 \(4: 5\).
8 RBTS PAPER

164371 The distance between two consecutive crests in a wave-train produced in a string is \(5 \mathrm{~cm}\). If two complete waves pass through any point per second, then the velocity of the wave is :

1 \(10 \mathrm{~cm} \mathrm{~s}^{-1}\)
2 \(15 \mathrm{~cm} \mathrm{~s}^{-1}\)
3 \(2.5 \mathrm{~cm} \mathrm{~s}^{-1}\)
4 \(5 \mathrm{~cm} \mathrm{~s}^{-1}\).