07. BEATS
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WAVES (NCERT)

274509 When two sound waves are superimposed, beats are produced when they have different

1 amplitudes and phases
2 velocities
3 phases
4 frequencies
NCERT Page-383 / N-293
WAVES (NCERT)

274511 Maximum number of beats frequency heard by a human being is

1 10
2 4
3 20
4 6
NCERT Page-383 / N-293
WAVES (NCERT)

274512 The essential condition for the formation of beats is

1 difference in frequencies of two sources should be $\ge 10$
2 difference in frequencies of two sources should be $<10$
3 difference in frequencies of two sources should be $>10$
4 difference in frequencies of two sources should be $\le 10$
NCERT Page-383 / N-293
WAVES (NCERT)

274513 Three sound waves of equal amplitudes have frequencies $\left( v-1 \right),v,\left( v+1 \right)$. They superpose to give beats. The number of beats produced per second will be :

1 3
2 2
3 1
4 4
NCERT Page-384 / N-294
WAVES (NCERT)

274514 Two tones of frequencies ${{n}_{1}}$ and ${{n}_{2}}$ are sounded together. The beats can be heard distinctly when

1 $10<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
2 $5\left\langle \left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right) \right\rangle 20$
3 $5<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
4 $0<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<10$
NCERT Page-384 / N-294
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WAVES (NCERT)

274509 When two sound waves are superimposed, beats are produced when they have different

1 amplitudes and phases
2 velocities
3 phases
4 frequencies
NCERT Page-383 / N-293
WAVES (NCERT)

274511 Maximum number of beats frequency heard by a human being is

1 10
2 4
3 20
4 6
NCERT Page-383 / N-293
WAVES (NCERT)

274512 The essential condition for the formation of beats is

1 difference in frequencies of two sources should be $\ge 10$
2 difference in frequencies of two sources should be $<10$
3 difference in frequencies of two sources should be $>10$
4 difference in frequencies of two sources should be $\le 10$
NCERT Page-383 / N-293
WAVES (NCERT)

274513 Three sound waves of equal amplitudes have frequencies $\left( v-1 \right),v,\left( v+1 \right)$. They superpose to give beats. The number of beats produced per second will be :

1 3
2 2
3 1
4 4
NCERT Page-384 / N-294
WAVES (NCERT)

274514 Two tones of frequencies ${{n}_{1}}$ and ${{n}_{2}}$ are sounded together. The beats can be heard distinctly when

1 $10<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
2 $5\left\langle \left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right) \right\rangle 20$
3 $5<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
4 $0<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<10$
NCERT Page-384 / N-294
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WAVES (NCERT)

274509 When two sound waves are superimposed, beats are produced when they have different

1 amplitudes and phases
2 velocities
3 phases
4 frequencies
NCERT Page-383 / N-293
WAVES (NCERT)

274511 Maximum number of beats frequency heard by a human being is

1 10
2 4
3 20
4 6
NCERT Page-383 / N-293
WAVES (NCERT)

274512 The essential condition for the formation of beats is

1 difference in frequencies of two sources should be $\ge 10$
2 difference in frequencies of two sources should be $<10$
3 difference in frequencies of two sources should be $>10$
4 difference in frequencies of two sources should be $\le 10$
NCERT Page-383 / N-293
WAVES (NCERT)

274513 Three sound waves of equal amplitudes have frequencies $\left( v-1 \right),v,\left( v+1 \right)$. They superpose to give beats. The number of beats produced per second will be :

1 3
2 2
3 1
4 4
NCERT Page-384 / N-294
WAVES (NCERT)

274514 Two tones of frequencies ${{n}_{1}}$ and ${{n}_{2}}$ are sounded together. The beats can be heard distinctly when

1 $10<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
2 $5\left\langle \left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right) \right\rangle 20$
3 $5<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
4 $0<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<10$
NCERT Page-384 / N-294
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WAVES (NCERT)

274509 When two sound waves are superimposed, beats are produced when they have different

1 amplitudes and phases
2 velocities
3 phases
4 frequencies
NCERT Page-383 / N-293
WAVES (NCERT)

274511 Maximum number of beats frequency heard by a human being is

1 10
2 4
3 20
4 6
NCERT Page-383 / N-293
WAVES (NCERT)

274512 The essential condition for the formation of beats is

1 difference in frequencies of two sources should be $\ge 10$
2 difference in frequencies of two sources should be $<10$
3 difference in frequencies of two sources should be $>10$
4 difference in frequencies of two sources should be $\le 10$
NCERT Page-383 / N-293
WAVES (NCERT)

274513 Three sound waves of equal amplitudes have frequencies $\left( v-1 \right),v,\left( v+1 \right)$. They superpose to give beats. The number of beats produced per second will be :

1 3
2 2
3 1
4 4
NCERT Page-384 / N-294
WAVES (NCERT)

274514 Two tones of frequencies ${{n}_{1}}$ and ${{n}_{2}}$ are sounded together. The beats can be heard distinctly when

1 $10<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
2 $5\left\langle \left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right) \right\rangle 20$
3 $5<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
4 $0<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<10$
NCERT Page-384 / N-294
NEET DIGITAL LIBRARY
WAVES (NCERT)

274509 When two sound waves are superimposed, beats are produced when they have different

1 amplitudes and phases
2 velocities
3 phases
4 frequencies
NCERT Page-383 / N-293
WAVES (NCERT)

274511 Maximum number of beats frequency heard by a human being is

1 10
2 4
3 20
4 6
NCERT Page-383 / N-293
WAVES (NCERT)

274512 The essential condition for the formation of beats is

1 difference in frequencies of two sources should be $\ge 10$
2 difference in frequencies of two sources should be $<10$
3 difference in frequencies of two sources should be $>10$
4 difference in frequencies of two sources should be $\le 10$
NCERT Page-383 / N-293
WAVES (NCERT)

274513 Three sound waves of equal amplitudes have frequencies $\left( v-1 \right),v,\left( v+1 \right)$. They superpose to give beats. The number of beats produced per second will be :

1 3
2 2
3 1
4 4
NCERT Page-384 / N-294
WAVES (NCERT)

274514 Two tones of frequencies ${{n}_{1}}$ and ${{n}_{2}}$ are sounded together. The beats can be heard distinctly when

1 $10<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
2 $5\left\langle \left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right) \right\rangle 20$
3 $5<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<20$
4 $0<\left( {{\text{n}}_{1}}-{{\text{n}}_{2}} \right)<10$
NCERT Page-384 / N-294