Open- NMDCAT-1

• Which of the following force provide necessary centripetal force to the moving car on a flat circular road?

• For one Newton force applied on the object of mass 4kg the acceleration must be

• A projectile has its speed maximum at the moment of

• The dimensionally tension, force , up thrust, friction ,weight ,normal reaction, are represented as

• Angular velocity is represented by the relation, except

• Angular Acceleration and angular velocity both are parallel if latter is

.   A car of mass 2000kg moving with initial speed of 20m/s hits another stationary car of mass 1500kg and  they  stuck together  with what speed they move after elastic collision

. Impulse is a vector physical quantity its direction is same as that of

• Two masses of 0.09kg and 0.01kg are moving with same K.E what is the ratio of their magnitude of momenta

11. A body of mass 2kg and momentum 8 N.s has kinetic energy

12. If K.E of a body becomes four times of the initial value the new momentum will be

13. If momentum of a body is increased by 50% then K.E increased by

14. A body travelling with constant acceleration of 10m/s² f S₁ is the distance travelled in ist second and

                  S2 is in the 2^nd second choose the correct relation between S1 & S₂

. A body is having acceleration 100m/s² at some instant its velocity is 100m/s in what time its 

                 velocity becomes double

16. The second law of motion can also be written as:

In given velocity -time graph shown in fig: calculate the distance  covered by the body during the journey  

        of 5 to 15 Sec.   

. A ball of mass 200g is thrown vertically 15m high what is the change in

       gravitational potential energy

.A tube well pumps out 40 kg water per sec if water comes with speed of 3m/s power of pump  is

20. Area under the force and displacement graph gives

.  Ratio of dimension of power and potential energy is

The consumption of energy by a 60-watt bulb for 2 sec is

23 Which of the following force can perform negative, positive as well as zero  work

24. How much angular displacement cover by earth in one year

25 If a body covers 5 rotations in 2 seconds, around a path of radius 2m the linear velocity of body is

26. The missile is fired with 20 m/s at 60^° with respect to the horizontal, the horizontal and vertical

      component of the velocity at the maximum height is respectively :

27. A force of 100 N acts on a ball of 800g for one microsecond the impulse acts on the ball is

• Two masses of 0.09kg and 0.01kg are moving with same K.E what is the ratio of their magnitude of momenta

29. Transverse and longitudinal waves are distinguished from the property of

30. A particle on top of the crest at any instant will come to the mean position in ——– time

31. What is the ratio of the length of open pipe to close pipe when both are producing 2^nd harmonic frequency

32. If an elevator is falling freely time period of the pendulum will be

33. A wave generator produce 500 pulses in 10 sec what is the period of oscillation

34. speed of sound is greater in

35. A source of sound moving with 1/10^th of speed of sound towards stationary listener what is the ratio of the apparent to the real frequency

36. According to the doppler effect our universe is continuously

37. when a beam of light travelling in rare medium is reflected from  a denser medium ,then it:

38. if the speed of sound in air is 340m/sec , what is the wavelength of 1-kHz sound waves:

39. An ocean wave has an amplitude of 2.5 m .Weather condition suddenly changes  such that the wave has the amplitude of 5.0 m. the amount of energy  transported  by the wave is:

40. In a transverse wave the distance between the crest and the adjacent trough is

41.Wave transport energy without transporting 

42. The speed of sound in hydrogen is  _______  times its speed in oxygen 

43.Speed of sound in vacuum is _________ m/s

44. According to Laplace view sound wave propagation is —— process

45. the periodic alternation of the sound between maximum and minimum loudness are called

46. what is the correct relation between the fundamental frequency of open (f1) and closed pipe (f2

47. which of the following properties of the light is(are) not changed when a beam of light goes obliquely from rarer to a denser medium

1.Amplitude

2.Direction

3.Wavelength

4.Frequency

48. Maximum destructive interference of two waves occur at points where the phase difference  between the two waves is

49. velocity of sound is greater in solids than is gases because

50. the star moving towards the earth shows a

51. progressive waves of frequency 300 Hz are superimposed to produce a system of stationary waves in which adjacent nodes are 1.5 m apart . the speed of wave is:

52. Stationary waves of fundamental frequency 50 Hz are produced in an organ pipe closed at one end. The distance b/w node and antinode is :     (the velocity of sound is =300m/s)

53. If a star emitting a yellow light , start accelerating towards earth . its color as seen from earth will be:

54. If the tension is increased four times. Its frequency will become

55) the ratio of the velocities of sound in air at 4 atm and 1 atm pressure would be

1. ball is thrown vertically upward with velocity of 19.6ms^-1. Approximately how

       high will it rise?

56.A signal has a frequency of 2 M Hz. what is the period of the signal?

1. The immune response recognizes

2. Which of the following cell that actively petrol the skin to phagocytize thepathogens?

5. Macrophages are a type of

3. Collagen is a

4. Which of the following substance/factor is present in sweat that destroys the cell wall ofbacteria?

6. Which of the following will attracted by the foreign material or inflammatoryresponse as a first cellular response?

21. Absorption may take place at which site/sites of the gastrointestinal tract?

26. Which of following is not transported by Circulatory system?

31. Mitral valve is present between?

7. Mechanical digestion of food occurs at which levels of gastrointestinal tract?

8. The major layer of GIT involved in mechanical digestion and peristaltic movements?

. Which cells of the stomach are involved in protection against microorganisms present in food?

10. Secretion of gastric juice from the gastric walls of stomach is the type of,

11. Psychotic disorder mostly observed in slightly older girls irritated by food?

12. The major cause of peptic ulcer is,

13. Blood flows speed less then 1mm/min is inCirculation?

14. Chose the correct sequence of impulse flow in heart?

15. Which is pumping organ of lymphatic system?

16. As Lymph is filtered in lymph node, Blood is filtered in?

17. Which is not a part of transport system?

18. The structure which prevents entry of food into internal nostrils?

19. Which one of the following is not the function of oral cavity?

20. Which of the following is mainly responsible for emulsification of fats,

22. Acidic chyme from stomach may damage the intestinal mucosa, to avoid this damage acidic chyme is first neutralized by

23. The pH of chyme is,

24. The sphincter/s present at anus,

25. Hunger pangs are actually due to,

27. “Dubb” portion of heart sound is related to which one of the following pairs?

28. Which one of the following is responsible for whole heart activity by generatingimpulse?

30. Purkinje fibers are extensions of?

32. Which structure does not deals with deoxygenated blood?

33. It is not the function of pleura:

34. It is the volume of air exchanged during one breath in and out in quiet breathing:

35. Residual volume of human lungs is about:

42. How much oxygen is released to tissues per 100 ml of blood?

45. Increase in H+ concentration in blood:

44. In RBCs, carbonic anhydrase is involved in:

43. Which of the following is true about solubility of gases in plasma?

41. The oxygen carrying capacity of blood is directly proportional to:

40. The ability of haemoglobin to bind with oxygen is called its:

39. Most of the oxygen is transported by our blood through:

38. Which of the following is true about breathing?

.

37. It increases rate and depth of inspiration:

36. In most of the cases, breathing is:

47. Which one of the following is the response of cytotoxic T cells that kills the invadingorganisms?

50. Memory cells are derived from

51. The diversity among antibodies is due to

52. Which of the following is the most formidable barrier to transplantation?

53. Chemically, MHC molecules are:

54. Interferons are:

55. All of the following are symptoms of inflammatory response except:

56. These are the structures that propel trapped air particles out of respiratory tract:

57. It is common for both digestive and respiratory systems:

58. How many stem bronchi are there in human respiratory system?

59. A structure that does not contain cartilage:

60. Which hich type of lipids are more harmful?

61. Blockage defects can cause?

62. Cyanosis is a/an?

63. Stroke cause paralysis and death, causeddue to blockage in?

64. Atherosclerosis, Sclerosis means?

65. These are main sites for gaseous exchange in human lungs:

66. Goblet cells are present in,

1.What is the ratio of volumes of 2 g of H2 and 16 g of CH4 both volumes are at STP?

2. Three volumes of hydrogen are required to combine completely with one volume of nitrogen to form two volumes of ammonia. Suppose one mole of hydrogen is combined with one mole of nitrogen. Which gas remains in excess and by how much?

               3H2 + N2  2NH3.

3. If product of moles and temperature per pressure ratio is constant than

4. All of the following statements are incorrect for 20 mol of hydrogen peroxide H₂O₂except

5. The molecular formula of the glucose is C₆H₁₂O_6. that contains 32.0 grams of oxygen?
   What is the total weight in grams of a sample of glucose

6. According to kinetic theory of gases, the absolute zero temperature is attained when

7. Arrange the following in increasing number of molecules
8. 0.5moles of H₂   ii. 4g of H₂     iii. 18g of H₂O     iv. 2.2g of CO₂

8. The number of atoms present in 0.5 moles of Nitrogen atoms is same as in

9. An element X has valency equal to 3. What will be its formula with carbonate ions?

10. . In which phenomenon does water change into water vapour below its boiling point

11. 10% of a mole of glucose contains

12. The combustion of one mole of a hydrocarbon yields 3.00 moles of CO₂ and 4.00 moles of H2O. The empirical formula of this compound is
    

13. How many No: of CO₂ molecules will be produced, when 3.01 x 10²³ CH₄ molecules react with

12.04 x 10²³ O₂ molecules 

C H₄  + 2O_{2     →}    CO ₂  + H₂O

14. . The volume of a gas measured at 27 C ^o and 1atm pressure is 10 liters. To reduce the volume to 5 liters at 1 atm pressure, the temperature required is

15. A gas has density “d” at temperature T. find out the temperature when density of gas is 4d?

16. Evaporation of a liquid can take place:

17. Which is not represented by 1mole of Nitrogen gas?

18. At standard pressure, which has the highest average kinetic energy?
    

19. Doubling the pressure on a gas at the same time that its Kelvin temperature is doubled causes its volume to

20. Which curve shows the correct graph of pv against p for fixed mas of gas at constant temperature? 

21. Compressed air coming out from a punctured football
    

22. A gas has density “d” at temperature T and pressure P. find out the density when temperature is 2T and pressure becomes 4P?

23. The deviation of a gas from ideal behaviour is maximum at,

24. What must be kept constant for Charles’ Law to hold true?

25. Quantum number values for 3p orbitals are

26. Which of the following are all isoelectronic

27. Which of the following elements has greater 1st ionization energy

28. What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3

29.Which one of the followings is correct statement?

30. In discharge tube experiment the nature of positive rays depends upon

31. When the pressure of the gas in discharge tube is reduced to 0.001mmHg , which of the following becomes more prominent

32. If n = 4, what are the possible values of l?

33. On the basis of electro negativity, hydrogen makes more polar bond with

34. Higher value of – ve electron affinity means

35. Which of the following sets of quantum numbers specify a valence electron in the Br atom? 

36. Mostly ionic compound are produced in between elements of

37. When 2 lone pairs and 2 bond pair are around the central atom reduction in the bond angle is up to.

38. . Molecular orbital which have higher energy than atomic orbitals is called

39. Orbitals of same energy produced after mixing of orbitals of different energy are called

40. The unhybridized “p” orbital in sp2 hybridization is

41. Which one of the following is more stable?

42. Which one of the following can not be determined experimentally?

43. Ammonia NH3 reacts with boron trifluoride

BF3 to make

44. What is the hybridization of the oxygen atom in water?

45. Which of the following molecules will not form Hydrogen bond?

46 .Strongest ionic bond will be formed between

47. which equation defines lattice energy of ionic compound xy?

(a)  X (s) + Y (s)  ———-           X Y (s)

(b) X (g) + Y (g)  ———           X Y (s)

(c) X⁺ (s) + Y- (s)   ———-          X Y (s)

(d) X⁺ (g) + Y- (g)    ———-         X Y (s)

48. The atoms X and Y have following electronic configuration

X = 1s2 2s2 2p6 3s2 3p6  3d6 4s2

Y =  1s2 2s2 2p4

Which one of the following compounds are they likely to form?

49. The electronic configuration of Cr can be written as

50. Which of the following sets of quantum numbers is not possible for 23rd electron of Cr( At. no. 24) ?

51. What is wrong about anode rays?

52. An orbital with l = 0 is

53. The electrons present in K-shell of the atom will differ in