| 1. | The frequency of first line of Balmer series in hydrogen atom is \( v_{0} \). The frequency of c... | 481 | | Frequency
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| 2. | For the following frequency distribution, construct a less than cumulative frequency curve. And ... | 163 | | Frequency
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| 3. | Two waves with similar frequencies are added. The resulting wavefor... | 136 | | Frequency
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| 4. | In a full wave rectifier, input ac current has a frequency \( v \). The output frequency of curr... | 125 | | Frequency
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| 5. | What do you conclude from the graph about the frequency of KE, PE a... | 120 | | Frequency
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| 6. | A tuning fork \(A\) of unknown frequency produces 5 beats/s with a fork of known frequency \(340.... | 42 | | Frequency
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| 7. | Frequency is the function of density \( (\rho) \), length \( (a) \) and surface tension \( (T) \... | 37 | | Frequency
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| 8. | Obtain a relation between stopping potential, frequency of incident light and threshold frequency. | 29 | | Frequency
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| 9. | If \( v_{1} \) is the frequency of series limit of Lyman series, \( v_{2} \) is frequency of fir... | 28 | | Frequency
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| 10. | \( v_{1} \) is the frequency of the series limit of Lyman series, \( v_{2} \) is the frequency o... | 20 | | Frequency
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| 11. | A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency \( 2... | 19 | | Frequency
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| 12. | The frequency of tuning fork \( \mathrm{A} \) is \( 2 \% \) more than the frequency of a standar... | 18 | | Frequency
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| 13. | The figure shows a series LCR circuit connected to a variable frequency 230 V source.\.... | 16 | | Frequency
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| 14. | Fill in the Blanks
a. is the reciprocal of frequency.
b. The unit of quantity on which the loudne... | 13 | | Frequency
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| 15. | If the mean of the following table is 30 , then find the missing frequencies.
Class lnervel ... | 10 | | Frequency
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| 16. | Construct a less than cumulative frequency curve
W and a greater than cumulative frequency curve... | 9 | | Frequency
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| 17. | A particle executes simple harmonic motion with a frequency \( f \). The frequency with which th... | 9 | | Frequency
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| 18. | A fork \( A \) has frequency \( 2 \% \) more than the standard fork and \( B \) has a frequency ... | 8 | | Frequency
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| 19. | A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250.... | 8 | | Frequency
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| 20. | The second overtone of an open pipe A and a closed pipe B have the same frequencies. The ratio of... | 8 | | Frequency
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| 21. | \( v_{1} \) is the frequency of the series limit of Lyman series, \( v_{2} \) is the frequency o... | 6 | | Frequency
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| 22. | The frequency of first line of Balmer series in hydrogen atom is \( v_{0} \). The frequency of c... | 6 | | Frequency
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| 23. | The frequency of tuning fork \( \mathrm{A} \) is \( 2 \% \) more than the frequency of a standar... | 6 | | Frequency
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| 24. | An ac source is connected to a capacitor C. Due to decrease in its operating frequency:.... | 6 | | Frequency
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| 25. | What is the impedance of a capacitor of capacitance C in an ac circuit using source of frequency.... | 6 | | Frequency
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| 26. | The frequency of a source is 20 kHz. The frequencies of the sound waves produced by it in water a... | 6 | | Frequency
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| 27. | A charge is oscillating with frequency \( 10^{5} \) hertz. What is the frequency of the electrom... | 6 | | Frequency
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| 28. | A coil has resistance 30 ohm and inductive reactance 20 ohm at \( 50 \mathrm{~Hz} \) frequency. ... | 6 | | Frequency
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| 29. | A body is executing simple harmonic motion with frequency ' n ', the frequency of its potential .... | 5 | | Frequency
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| 30. | The fundamental frequency of a closed organ pipe is same as the first overtone frequency of an op... | 5 | | Frequency
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| 31. | Assertion The frequency of the electromagnetic wave naturally equals the frequency of oscillatio... | 5 | | Frequency
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| 32. | The frequency of an \( E M \) wave is greater than frequency of oscillation of charge. | 5 | | Frequency
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| 33. | The threshold frequency for a certain metal is v0. When a certain radiation of frequency 2v0 is .... | 5 | | Frequency
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| 34. | When the light of frequency 2v0 (where v0 is threshold frequency), is incident on a me.... | 4 | | Frequency
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| 35. | Consider the following frequency distribution:
If the sum of all frequencies is 584 and median .... | 4 | | Frequency
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| 36. | A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250.... | 4 | | Frequency
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| 37. | \( n_{1} \) is the frequency of the pipe closed at one end and \( n_{2} \) is the frequency of t... | 4 | | Frequency
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| 38. | What are (a) the lowest frequency, (b) the second lowest frequency, and (c) the third lowest fre... | 4 | | Frequency
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| 39. | Second overtone frequency of a closed pipe and fourth harmonic frequency of an open pipe are sam... | 4 | | Frequency
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| 40. | The frequency of a FM transmitter without signal input is called
(a) Lower side band frequency
(... | 3 | | Frequency
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| 41. | Construct a greater than cumulative frequency curve.
Class Interval Frequency
5-9 1
... | 3 | | Frequency
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| 42. | Assertion: In LCR series AC circuit, XL = XC = R at a given frequency. When frequency is doubled.... | 3 | | Frequency
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| 43. | An FM signal has a resting frequency of \( 105 \mathrm{MHz} \) and highest frequency of \( 105.0... | 3 | | Frequency
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| 44. | If the frequency of third harmonic of a closed organ pipe is same as the frequency of first over.... | 3 | | Frequency
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| 45. | A body is executing simple harmonic motion with frequency ' n ', the frequency of its potential .... | 3 | | Frequency
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| 46. | If the mean of the following table is 30 , then find
(W) the missing frequencies.
\( \begin{arra... | 2 | | Frequency
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| 47. | Monochromatic light of frequency f is incident on emitter having threshold frequency f0. The kin.... | 2 | | Frequency
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| 48. | Note is a sound
a. of a mixture of several frequencies
b. of a mixture of two frequencies only
c... | 2 | | Frequency
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| 49. | (i) What is meant by frequency of sound
(W) waves?
(ii) Give the range of frequencies of sound w... | 2 | | Frequency
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| 50. | Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. W.... | 2 | | Frequency
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| 51. | Doppler shift in frequency does not depend upon
(a) frequency of the wave produced
(b) velocity ... | 2 | | Frequency
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| 52. | The notes of frequencies which are integral multiple of the fundamental frequencies are called
(... | 2 | | Frequency
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| 53. | The ratio of maximum frequency and minimum frequency of light emitted in Balmer series of hydrog.... | 2 | | Frequency
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| 54. | An alternating e.m.f. of frequency v=12pi;LC applied to a series LCR circuit. For this frequency.... | 2 | | Frequency
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| 55. | The frequency of first line of Balmer series in hydrogen atom is \( v_{0} \). The frequency of c... | 2 | | Frequency
|
| 56. | In the frequency distribution of the discrete data given below, the frequency \(k\) against valu.... | 2 | | Frequency
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| 57. | Assertion: When frequency is greater than resonant frequency in a series LCR circuit, it will be.... | 2 | | Frequency
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| 58. | A message signal of frequency ωm is superposed on a carrier wave of frequency &omega.... | 1 | | Frequency
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| 59. | Assertion The frequency of the electromagnetic wave naturally equals the frequency of oscillatio... | 1 | | Frequency
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| 60. | In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be:.... | 1 | | Frequency
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| 61. | A store emits sound of frequency \( 600 \mathrm{~Hz} \) inside water. The frequency heard in air.... | 1 | | Frequency
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| 62. | A charge is oscillating with frequency \( 10^{5} \) hertz. What is the frequency of the electrom... | 1 | | Frequency
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| 63. | Frequency of A allele is 0.6 and that of B allele is 0.4 . What would be frequency of heterozygo.... | 1 | | Frequency
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| 64. | In the frequency distribution of the discrete data given below, the frequency \(k\) against valu.... | 1 | | Frequency
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| 65. | Give the frequency ranges of the following:
(i) High frequency band (HF) (ii) Very high frequenc... | 1 | | Frequency
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| 66. | Frequencies of two sound waves are 334 Hz and 326 Hz. If the velocity of the sound is 330 ms-1, .... | 1 | | Frequency
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| 67. | An ultrasound machine in a medical healthcare centre uses a frequency of 20 MHz to diagnose human... | 1 | | Frequency
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| 68. | Frequency of A allele is 0.6 and that of B allele is 0.4 . What would be frequency of heterozygo.... | 1 | | Frequency
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| 69. | The reactance of a 25 micro;F capacitor at the AC frequency of 4000 Hz is.... | 1 | | Frequency
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| 70. | Doppler shift in frequency does not depend upon
(a) frequency of the wave produced
(b) velocity ... | 1 | | Frequency
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| 71. | Let \( f_{1} \) be the maximum frequency of Lyman series, \( f_{2} \) be the frequency of f.... | 1 | | Frequency
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| 72. | If the frequency of S.H.M. is a. Then frequency of
oscillation of its kinetic energy is.... | 1 | | Frequency
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| 73. | If the mean of the following table is 30 , then find the missing frequencies.
\begin{tabular}{|c... | 1 | | Frequency
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| 74. | Let \(v_1\) be the frequency of the series limit of the Lyman series, \(v _2\) be the frequency .... | 1 | | Frequency
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| 75. | Light of frequency v is incident on a photosensitive surface of threshold frequency v0v>v0. .... | 1 | | Frequency
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| 76. | Construct a less than cumulative frequency curve and a greater than cumulative frequency curve a... | 1 | | Frequency
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| 77. | A tuning fork of frequency 256 Hz will resonate with frequency:.... | 0 | | Frequency
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| 78. | Note is a sound
a. of a mixture of several frequencies
b. of a mixture of two frequencies only
c... | 0 | | Frequency
|
| 79. | (i) What is meant by frequency of sound
(W) waves?
(ii) Give the range of frequencies of sound w... | 0 | | Frequency
|
| 80. | Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. W.... | 0 | | Frequency
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| 81. | The frequency of a radar is . The frequency of reflected wave from an aeroplane is increased by .... | 0 | | Frequency
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| 82. | Frequency of wave is5#215;1014Hz. The wave is;.... | 0 | | Frequency
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| 83. | Assertion: In LCR series AC circuit, XL = XC = R at a given frequency. When frequency is doubled.... | 0 | | Frequency
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| 84. | Find the variance and SD for the given frequency distribution.
Class Interval Frequency
1-... | 0 | | Frequency
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| 85. | Ventilation rate may be expressed as
(A) Inspiratory reserve volume \( \times \) Frequency of re... | 0 | | Frequency
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| 86. | If \(v_1\) and \(v_2\) are the frequencies of two turning forks, then beat frequency is.... | 0 | | Frequency
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| 87. | The human eye is most sensitive to which
\( \mathrm{P} \)
frequency... | 0 | | Frequency
|
| 88. | The notes of frequencies which are integral multiple of the fundamental frequencies are called
(... | 0 | | Frequency
|
| 89. | For the following frequency distribution, con-
W struct a less than cumulative frequency curve. ... | 0 | | Frequency
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| 90. | The median and mode of a frequency distribution are 525 and 500 then mean of same frequency dist... | 0 | | Frequency
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| 91. | An alternating e.m.f. of frequency v=12pi;LC applied to a series LCR circuit. For this frequency.... | 0 | | Frequency
|
| 92. | First overtone frequency of a closed organ pipe is equal to the first overtone frequency of an o... | 0 | | Frequency
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| 93. | An FM signal has a resting frequency of \( 105 \mathrm{MHz} \) and highest frequency of \( 105.0... | 0 | | Frequency
|
| 94. | The condition when frequency of the applied force is equal to the natural frequency of the vibra.... | 0 | | Frequency
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| 95. | For the following frequency distribution, construct a less than cumulative frequency curve. And a... | 0 | | Frequency
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| 96. | An observer moves towards a stationary source of sound of frequency... | 0 | | Frequency
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| 97. | If a variable frequency ac source is connected to a capacitor then with decrease in frequency, t.... | 0 | | Frequency
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| 98. | The median and mode of a frequency distribution are 525 and 500 then mean of same frequency dist... | 0 | | Frequency
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| 99. | A particle executes simple harmonic motion with a frequency ' \\(f\\) ' . The frequency with whi.... | 0 | | Frequency
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| 100. | The threshold frequency of a photoelectric metal is $v_{0}$. If light of frequency $4 v_{0}$ is .... | 0 | | Frequency
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