PART TEST 6 FOR NEET 2022

1. What is the time taken by a particle executing SHM with a time period T sec from a positive extreme position to half of the amplitude?

2. On which of the following does the energy of a simple harmonic motion depend

3. Calculate the amplitude for a SHM using the equation x = 3sin2pt + 4cos3pt

4. The equation of the progressive wave is y= asin2π (nt−5/x​). The ratio of maximum particle velocity to wave velocity is

5. What is the phase difference between the prongs of the tuning fork

6. What is the change in the phase if a wave is reflected from a denser medium

7. The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion is:

8. The length of the pendulum which is displaying SHM is increased by 21%. Calculate the percentage increase in the periodic time of the pendulum.

9. The motion of a particle varies with time according to the relation y =a sin ωt+a cos ωt Then

10. A body mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5s. The value of m in kg is-

11. When two displacements represented by y1=asin(ωt) and y2=bcos(ωt) are superimposed, the motion is –

12. A particle is executing a simple harmonic motion. Its maximum acceleration is α and maximum velocity is β. Then, its time period of vibration will be

13. Which one of the following equations of motion represents simple harmonic motion?
(where k, k0, k1 and α are all positive.)

14. Two simple harmonic motions of angular frequency 100 and 1000 rad s−1 have the same displacement amplitude. The ratio of their maximum acceleration is –

15. In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.170.The frequency of the wave will be

16. A resonance air column of length 40 cm resonates with tuning fork of frequency 450Hz. Ignoring end corrections, the velocity of sound in air will be

17. Two equal -ve charges -q are fixed at the point (O, a) and (O, a) on the y-axis. A positive charge Q is released from rest at the point (2a, 0) on the x-axis. The charge will:

18. A particle executing simple harmonic motion of amplitude 5 cm has maximum speed of 31.4 cm/s. The frequency of its oscillation is

19. A pan with a set of weights is attached to a light spring. The period of vertical oscillation is 0.5s. When some additional weights are put in pan, then the period of oscillations increases by 0.1 s. The extension caused by the additional weight is

20. Assertion:  A particle in x-y plane is related by   x = a sin t and y = a (l – cos t), where a and ω are constants, then the particle will have parabolic motion.

Reason:  A particle under the influence of two perpendicular velocities has parabolic motion.

21. A body of mass 60 kg is suspended by means of three strings P Q and R as shown in the figure is in equilibrium. The tension in the string P is

22. The frequency of oscillations of a mass m connected horizontally by a spring of spring constant k is 4 Hz. When the spring is replaced by two identical springs as shown in figure. Then the effective frequency is

23. The time period of a particle undergoing SHM is 16 s. It starts motion from the mean position. After 2 s, its velocity is 0.4 m s-1 .The amplitude is

24. In simple harmonic motion, loss of kinetic energy is proportional to

25. A simple pendulum of length l has a maximum angular displacement θ. The maximum kinetic energy of the bob is

26. A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure. The time variation of the magnitude of e.m.f. generated across the coil during one cycle is

27. The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8cm the potential energy stored in it is

28. A boat at anchor is rocked by waves whose crests are 100 m apart and velocity is 25 m/sec. The boat bounces up once in every

29. A body executes simple harmonic motion. The potential energy (PE), kinetic energy (KE) and total energy (TE) are measured as a function of displacement y. Which of the following statements is true?

30. A mass of 2.0 Kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible. When pressed slightly and released the mass executes a simple harmonic motion. The spring constant is 200 N/m. What should be the minimum amplitude of the motion, so that the mass gets detached from the pan? (take g = 10 m/s^2)

31. High medullary interstitial concentration maintained by-

32.Skin excretes all except-

33.Most common renal stone is-

44. Medullary nephron has all except-

35.The best substance for renal function test-

36.Dialysis is done to-

37. True about nephron-

38)Kidney contribute to blood pressure control by-

39) Micturition done by dealation of and release of-

40) GFR can be increased by-

41. Tympanum has all the following except-

42.All of the following are functions of labyrinth except-

43. which of following part of pituitary is store house of ADH-

44. Testosterone has all action except-

45. which of the following is not 2 nd class messenger-

46. If you move to dessert, your ADH level will go –

47. Which organ doesn’t show role in vit-D synthesis-

48. Feedback inhibition is executed by-

19. ‘X’ is hormone which stimulates to secrete enzymatic part of pancreatic juice and ‘Y’ helps to secrete non-enzymatic part of the same. Identify ‘X’ and ‘Y-

50. Which hormones are known as stress hormone and emergency hormone respectively-

51. All of the following hormone increases peristalsis except-

52. Myelin sheath is produced by-

53. Which of the following is excitatory neurotransmitter-

54. Nissl’s body is mainly composed of-

55. which of the following statements is correct?

56. Color blindness and night blindness are defect due to following respectively-

57. Destruction of the anterior horn cells of the spinal cord would result in loss of-

58. The nerve center which control the body temperature and the urge for eating are contained in

59.The most abundant intracellular cation is-

30. When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is-

61.Which compound acts as oxidizing agent only?

62.The oxidation state of chlorine in bleaching powder is

64.When benzaldehyde is oxidised to give benzoic acid then the oxidation state of carbon of aldehydic group is changed from

64.Which of the following has the lowest normality?

The number of moles of H2O2 required to completely react with 400 ml of 0.5 N KMnO4 in acidic medium are

66.   Cl2 (g) + XOH YClO3- + ZH2O + 10e-
The coefficient X,Y and Z are

The half reaction shown for KMnO4 as oxidizing agent in strongly alkaline medium and its equivalent weight is

Standard reduction potentials at 25°C of Li+/Li,Ba2+/Ba, Na+/Na and Mg2+ / Mg are -3.05, -2.90, -2.71 is the strongest oxidizing agent?

69. Which substance is serving as a reducing agent in the following reaction ?

14H+ + Cr2O72- + 3Ni 7H2O + 3Ni2+ + Cr3+

The oxide, which cannot act as a reducing agent, is

71. Which of the following is redox reaction ?

72. Oxidation state of Fe in Fe3O4 is

73. In which of the following compounds transition metal has zero oxidation state?

74. Oxidation numbers of A,B,C are +2,+5 and -2 respectively. Possible formula of compound is

75. The oxidation states of sulphur in the anions SO32-,S2O42- and S2O62- follow the order

76.  Which is the best description of the behavior of bromine in the reaction given below?
H2O + Br2 HOBr + HBr

77.  Which of the following is a secondary pollutant?

78. TLV values of four pollutants A B C and D are 2ppm, 9 ppm, 20 ppm and 50 ppm. Among these four pollutants which one is the most toxic pollutant?

79. Threshold limit value is the maximum limit value of

80.  BOD values of four samples A B C and D of water are 60, 80, 100, and 150 mg/litr , respectively. Which is more polluted?

81.  Which of the following is a wrong statement?

82.  The green house gas is

83.  There is a possibility of melting of polar ice caps and increase in the level of sea water due to

84. The green houseeffect is

85. The wrong statement among the following s

86. Which of the following statements is false?

87. Compound formed in the depletion of O3 layer by chlorofluorocarbons is

88.  Due to unwanted growth of algee and other plants the ponds and lakes are filled with sediments and become dry. This is known as

89.  Which of the following is not a soil pollutant?

90. Which of the following statement is correct?