100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	_____ the time our boss is sixty, he will have worked for forty years. A) When B) Until C) Over D) By
Answer» Correct option is D) By

Discussion

2.	Then all effort ceased. I relaxed. Even my legs felt limp; and a blackness swept over my brain. It wiped out fear; it wiped out terror. There was no more panic. It was quiet and peaceful. Nothing to be afraid of. This is nice... to be drowsy... to go to sleep... no need to jump... too tired to jump... it’s nice to be carried gently... to float along in space... tender arms around me... tender arms like Mother’s... now I must go to sleep... I crossed to oblivion, and the curtain of life fell. i Choose the correct option with reference to the two statements given below. Statement 1: The author tried his best to jump out of water. Statement 2: After a while, the author was not anxious in water. a) If Statement 1 is the cause, Statement 2 is the effect. b) If Statement 1 is the effect, Statement 2 is the cause. c) Both the statements are the effects of a common cause. d) Both the statements are the effects of independent causes. ii The ‘curtain (of life) fell’ corresponds to an aspect of a) Geometry. b) History. c) Sports. d) Drama. iii The purpose of using “…” in the above passage is to a)show omission.b)indicate pauses. c)shorten a dialogue. d)replace an idea. iv Which option indicates that the poet lost consciousness? a) ‘It was quiet and peaceful.’ b) ‘I crossed to oblivion.’ c) ‘Tender arms like Mother’s.’ d) ‘It wiped out fear.’
Answer» i. (a) ii. (d) iii. (b) iv. (b)

2.

Then all effort ceased. I relaxed. Even my legs felt limp; and a blackness swept over my brain. It wiped out fear; it wiped out terror. There was no more panic. It was quiet and peaceful. Nothing to be afraid of. This is nice... to be drowsy... to go to sleep... no need to jump... too tired to jump... it’s nice to be carried gently... to float along in space... tender arms around me... tender arms like Mother’s... now I must go to sleep... I crossed to oblivion, and the curtain of life fell. i Choose the correct option with reference to the two statements given below. Statement 1: The author tried his best to jump out of water. Statement 2: After a while, the author was not anxious in water. a) If Statement 1 is the cause, Statement 2 is the effect. b) If Statement 1 is the effect, Statement 2 is the cause. c) Both the statements are the effects of a common cause. d) Both the statements are the effects of independent causes. ii The ‘curtain (of life) fell’ corresponds to an aspect of a) Geometry. b) History. c) Sports. d) Drama. iii The purpose of using “…” in the above passage is to a)show omission.b)indicate pauses. c)shorten a dialogue. d)replace an idea. iv Which option indicates that the poet lost consciousness? a) ‘It was quiet and peaceful.’ b) ‘I crossed to oblivion.’ c) ‘Tender arms like Mother’s.’ d) ‘It wiped out fear.’

Answer»

i. (a)

ii. (d)

iii. (b)

iv. (b)

Discussion

3.	The reflecting surface of two intersecting flat mirrors are at an angle `theta (0^(@) lt theta lt 90^(@))`. As shown in Figure. For a light ray that strikes the horizontal mirror, the emerging ray intersects the incident ray at an angle `beta` . If one of the mirrors is rotated at `(d theta)/(dt) = 1^(@)//s`, then the angle `beta` changes aat the rate of A. `1^(@)//s`B. `2^(@)//s`C. `-1^(@)//s`D. `-2^(@)//s`
Answer» Correct Answer - D From geometry `beta = (180^(@) - 2 theta)` So, `(d beta)/(dt) = -(2 d theta)/(dt)`

Discussion

4.	The most common carrier of communicable disease is.......a) Spider b) Dragon fly c) House fly d) Ant
Answer» The most common carrier of communicable disease is House fly.

Discussion

5.	…it was a big and confusing forest which he had gotten into. He tried, to be sure, to walk in a definite direction, but the paths twisted back and forth so strangely! He walked and walked without coming to the end of the wood, and finally he realised that he had only been walking around in the same part of the forest. All at once he recalled his thoughts about the world and the rattrap. Now his own turn had come. He had let himself be fooled by a bait and had been caught. The whole forest, with its trunks and branches, its thickets and fallen logs, closed in upon him like an impenetrable prison from which he could never escape. i) How would you characterise the mood of the above extract? a) mysterious, restful b) ominous, despairing c) thoughtful, whimsical d) philosophical, anguished ii) By what bait had the peddler been fooled? a) He had chosen to take the ‘safe’ forest route. b) He had decided to avoid the public highway. c) He had stolen money from the trusting crofter. d) He didn’t realize the power of his rattrap analogy. iii) The consequence of ‘his own turn’ having come was that the peddler had _____ a) got irreversibly lost in the thick, warped forest. b) been fooled and imprisoned in a hopeless prison. c) been walking around the same part of the forest. d) walked the whole forest without finding the end. iv) The above extract richly employs literary devices. Look at the table below. Choose the option that correctly matches the instances/ examples in Column A with the literary devices in Column B:Column AColumn B1. The forest closed in upon the peddier like an impenetrable prison.(i) imagery2. The big and confusing forest with its twisted paths, trunks, branches, thickets and failen logs.(ii) Ailogory3. The lost peddler was reminded of the owrld and the rattrap.(iii) Metaphor4. It was a big and confusing forest which he had gotten into. the peddier had been fooled and waas trapped in the forest.(iv) similea) 1 - (i) ; 2 – (ii) ; 3 – (iii) ; 4 – (iv) b) 1 – (iv) ; 2 – (i) ; 3 – (ii) ; 4 – (iii) c) 1 – (iii) ; 2 – (iv) ; 3 – (i) ; 4 – (ii) d) 1 – (ii) ; 2 – (iii) ; 3 – (iv) ; 4 – (i)
Answer» i – b ; ii – c ; iii – a ; iv – b

5.

…it was a big and confusing forest which he had gotten into. He tried, to be sure, to walk in a definite direction, but the paths twisted back and forth so strangely! He walked and walked without coming to the end of the wood, and finally he realised that he had only been walking around in the same part of the forest. All at once he recalled his thoughts about the world and the rattrap. Now his own turn had come. He had let himself be fooled by a bait and had been caught. The whole forest, with its trunks and branches, its thickets and fallen logs, closed in upon him like an impenetrable prison from which he could never escape. i) How would you characterise the mood of the above extract? a) mysterious, restful b) ominous, despairing c) thoughtful, whimsical d) philosophical, anguished ii) By what bait had the peddler been fooled? a) He had chosen to take the ‘safe’ forest route. b) He had decided to avoid the public highway. c) He had stolen money from the trusting crofter. d) He didn’t realize the power of his rattrap analogy. iii) The consequence of ‘his own turn’ having come was that the peddler had _____ a) got irreversibly lost in the thick, warped forest. b) been fooled and imprisoned in a hopeless prison. c) been walking around the same part of the forest. d) walked the whole forest without finding the end. iv) The above extract richly employs literary devices. Look at the table below. Choose the option that correctly matches the instances/ examples in Column A with the literary devices in Column B:Column AColumn B1. The forest closed in upon the peddier like an impenetrable prison.(i) imagery2. The big and confusing forest with its twisted paths, trunks, branches, thickets and failen logs.(ii) Ailogory3. The lost peddler was reminded of the owrld and the rattrap.(iii) Metaphor4. It was a big and confusing forest which he had gotten into. the peddier had been fooled and waas trapped in the forest.(iv) similea) 1 - (i) ; 2 – (ii) ; 3 – (iii) ; 4 – (iv) b) 1 – (iv) ; 2 – (i) ; 3 – (ii) ; 4 – (iii) c) 1 – (iii) ; 2 – (iv) ; 3 – (i) ; 4 – (ii) d) 1 – (ii) ; 2 – (iii) ; 3 – (iv) ; 4 – (i)

Answer»

i – b ;

ii – c ;

iii – a ;

iv – b

Discussion

6.	(i) The most appropriate justification for the title of the chapter ‘Deep Water’ is that a) it's about the dangerous depth of the swimming pool. b) It reveals the author’s lack of surety about overcoming his fear of swimming. c) it underlines the author’s fear of water and how he overcomes it. d) it includes the methods of the author’s coach to overcome the fear of deep water.(ii) Choose the quote that DOES NOT resonate with the central idea of the chapter.a) Option 1 b) Option 2 c) Option 3 d) Option 4(iii) Samuel has a phobia of heights but is scared and can’t overcome it. Choose the option that displays an advice.1234Go to the swimming pool and jump in it from the highest diving board that you see there.If i were you.i'd begin small. Like spending 10 mins. looking down from my balcony, each day, for a a week.unbelievable! What's teh probelm? i' ve done bunglee jumping it's a piece of cakeFear is a major issue if your let it control you. I think it will take a firm grip on your if you don't address it soon.a) Option 1 b) Option 2 c) Option 3 d) Option 4(iv) The chap that threw me in was saying, “But I was only fooling.” Choose the option mentioning the personality traits of this ‘chap’. 1. persuasive 2. irresponsible 3. domineering 4. manipulative 5. callousa) 1, 2, 4 b) 2, 4, 5 c) 2, 3, 5 d) 1, 3, 5
Answer» i.(c) ii. (b) iii. (b) iv. (c) v. (c)

6.

(i) The most appropriate justification for the title of the chapter ‘Deep Water’ is that a) it's about the dangerous depth of the swimming pool. b) It reveals the author’s lack of surety about overcoming his fear of swimming. c) it underlines the author’s fear of water and how he overcomes it. d) it includes the methods of the author’s coach to overcome the fear of deep water.(ii) Choose the quote that DOES NOT resonate with the central idea of the chapter.a) Option 1 b) Option 2 c) Option 3 d) Option 4(iii) Samuel has a phobia of heights but is scared and can’t overcome it. Choose the option that displays an advice.1234Go to the swimming pool and jump in it from the highest diving board that you see there.If i were you.i'd begin small. Like spending 10 mins. looking down from my balcony, each day, for a a week.unbelievable! What's teh probelm? i' ve done bunglee jumping it's a piece of cakeFear is a major issue if your let it control you. I think it will take a firm grip on your if you don't address it soon.a) Option 1 b) Option 2 c) Option 3 d) Option 4(iv) The chap that threw me in was saying, “But I was only fooling.” Choose the option mentioning the personality traits of this ‘chap’. 1. persuasive 2. irresponsible 3. domineering 4. manipulative 5. callousa) 1, 2, 4 b) 2, 4, 5 c) 2, 3, 5 d) 1, 3, 5

Answer»

i.(c)

ii. (b)

iii. (b)

iv. (c)

v. (c)

Discussion

7.	The lower the stock market falls, _____ . A) then the price of gold rises higher B) the higher the price of gold rises C) because the price of gold rises high D) the price of gold to rise higher
Answer» Correct option is B) the higher the price of gold rises

Discussion

8.	The following is an antibiotic. a) Sodium bi carbonate b) Streptomycin c) Alcohol d) Yeast
Answer» Streptomycin is an antibiotic.

Discussion

9.	“Since you have been so nice to me all day long, as if I was a captain, I want to be nice to you, in return, as if I was a real captain — for I do not want you to be embarrassed at this Christmas season by a thief; but you can give back the money to the old man on the roadside, who has the money pouch hanging on the window frame as a bait for poor wanderers. The rattrap is a Christmas present from a rat who would have been caught in this world’s rattrap if he had not been raised to captain, because in that way he got power to clear himself. “Written with friendship and high regard, Captain von Stahle.” i Which of the following CANNOT be attributed to the peddler, according to the above extract? a) indebtedness b) reform c) self-pity d) self-awareness ii Why did the peddler gift a rattrap as a Christmas present? a) It was all the peddler had that he could give away, and represented his turn to honesty. b) It symbolized his successful escape from entrapment as he returned the stolen money. c) It served as a reminder for Edla to be wary of the dangerous temptations of the world. d) It was a practical and convenient present that the lady of the house could effectively use. iii The word ‘frame’ has been used to indicate a rigid structure that surrounds something such as a picture, door, or windowpane. There are other meanings of ‘frame’ too. Choose the option that DOES NOT list the meaning of ‘frame’. a) Option (1) b) Option (2) c) Option (3) d) Option (4) iv This communication includes 1) a promise 2) regret 3) an apology 4) shame a) only 4 b) only 1 c) 1 & 3 d) 2 & 4
Answer» i – c ; ii – a ; iii – d ; iv – c

9.

“Since you have been so nice to me all day long, as if I was a captain, I want to be nice to you, in return, as if I was a real captain — for I do not want you to be embarrassed at this Christmas season by a thief; but you can give back the money to the old man on the roadside, who has the money pouch hanging on the window frame as a bait for poor wanderers. The rattrap is a Christmas present from a rat who would have been caught in this world’s rattrap if he had not been raised to captain, because in that way he got power to clear himself. “Written with friendship and high regard, Captain von Stahle.” i Which of the following CANNOT be attributed to the peddler, according to the above extract? a) indebtedness b) reform c) self-pity d) self-awareness ii Why did the peddler gift a rattrap as a Christmas present? a) It was all the peddler had that he could give away, and represented his turn to honesty. b) It symbolized his successful escape from entrapment as he returned the stolen money. c) It served as a reminder for Edla to be wary of the dangerous temptations of the world. d) It was a practical and convenient present that the lady of the house could effectively use. iii The word ‘frame’ has been used to indicate a rigid structure that surrounds something such as a picture, door, or windowpane. There are other meanings of ‘frame’ too. Choose the option that DOES NOT list the meaning of ‘frame’. a) Option (1) b) Option (2) c) Option (3) d) Option (4) iv This communication includes 1) a promise 2) regret 3) an apology 4) shame a) only 4 b) only 1 c) 1 & 3 d) 2 & 4

Answer»

i – c ;

ii – a ;

iii – d ;

iv – c

Discussion

10.	We _____ several possibilities before we made the decisions. A) had been B) hadn’t been C) been considering D) had been considering
Answer» Correct option is D) had been considering

Discussion

11.	Yeast is used in the production of.......a) Sugar b) Alcohol c) Hydrochloric acid d) Oxygen
Answer» Yeast is used in the production of Alcohol.

Discussion

12.	I _____ the answer now. A) know B) known C) knows D) knew
Answer» Correct option is A) know

Discussion

13.	What time ________ breakfast? A) does Mary have the B) does Mary have C) has Mary D) has Mary the
Answer» Correct option is B) does Mary have

Discussion

14.	I _____ bread this morning. A) buy B) bought C) sell D) buying
Answer» Correct option is B) bought

Discussion

15.	His mother will come at 8 o’clock ________ evening. A) of this B) on this C) this D) at this
Answer» Correct option is C) this

Discussion

16.	AIDS is caused by.......a) Bacteria b) Virus c) Yeast d) Algae
Answer» AIDS is caused by Virus.

Discussion

17.	He was born _____ 1955. A) on B) at C) of D) in
Answer» Correct option is D) in

Discussion

18.	The longest wavelength doublet absorption is observed at `589` and `589.6 nm`. Caiculate the frequency of each transition and energy differebce between two excited states.
Answer» `lambda_(1)=589 nm=589xx10^(-9)m` `:. V_(1)=c/lambda_(1)=(3.0xx10^(8)ms^(-1))/(589xx10^(-9)m)=5.088xx10^(14) s^(-1)` `lambda_(2)=589.6 nm =589.6xx10^(-9) m` `:.v_(2)=c/lambda_(2)=(3.0xx10^(8)m s^(-1))/(589.6xx10^(-19)m)` `=5.088xx10^(14) s^(-1)` `DeltaE=E_(2)-E_(1)` `=h(v_(2)-v_(1))` `=(6.626xx10^(-34)J s)(5.093-5.088)xx10^(14) s^(-1)` `3.31xx10^(-22)J`

Discussion

19.

Intestinal bacteria are main source of which one of the following vitamins ?1. Vitamin E2. Vitamin C3. Vitamin B124. Vitamin A

Answer» Correct Answer - Option 3 : Vitamin B₁₂

Vitamin B₁₂ is a vitamin that is produced by bacteria in the colon of the human body.
Vitamin B12 is produced by the bacteria in the small intestine.
In addition to vitamin B12, vitamin K is also produced by gut bacteria.

Vitamins	Name	Deficiency Diseases
Vitamin A	Retinol	Night blindness
Vitamin B1	Thiamine	Beriberi
Vitamin B2	Riboflavin	Ariboflavinosis
Vitamin B3	Niacin	Pellagra
Vitamin B5	Pantothenic acid	Paresthesia
Vitamin B6	Pyridoxine	Anemia
Vitamin B7	Biotin	Dermatitis
Vitamin B9	Folic acid	Megaloblastic anemia
Vitamin B12	Cyanocobalamin	Pernicious Anemia
Vitamin C	Ascorbic acid	Scurvy
Vitamin D	Cholecalciferol	Rickets
Vitamin E	Tocopherols	Hemolytic anemia
Vitamin K	Phylloquinone	Bleeding diathesis

Discussion

20.	Which one of the following hormones is responsible for the development of female sexual characters ?1. Prolactin2. Estrogen3. Oxytocin4. Progesterone
Answer» Correct Answer - Option 2 : Estrogen Estrogen: Estrogen (American English) or oestrogen (British English) is the primary female sex hormone as well as a medication. It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics. Prolactin: Prolactin hormone is produced by Anterior lobe of the pituitary gland. It helps women who are breastfeeding produce milk. Oxytocin: Oxytocin acts on the smooth muscles of our body and stimulates their contraction. In females, it stimulates a vigorous contraction of the uterus at the time of childbirth, and milk ejection from the mammary gland. For this reason, it is also called the birth hormone. Progesterone: It is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. It belongs to a group of steroid hormones called progestogens and is the major progestogen in the body.

20.

Which one of the following hormones is responsible for the development of female sexual characters ?1. Prolactin2. Estrogen3. Oxytocin4. Progesterone

Answer» Correct Answer - Option 2 : Estrogen

Estrogen:
- Estrogen (American English) or oestrogen (British English) is the primary female sex hormone as well as a medication.
- It is responsible for the development and regulation of the female reproductive system and secondary sex characteristics.

Prolactin:
- Prolactin hormone is produced by Anterior lobe of the pituitary gland.
- It helps women who are breastfeeding produce milk.
Oxytocin:
- Oxytocin acts on the smooth muscles of our body and stimulates their contraction.
- In females, it stimulates a vigorous contraction of the uterus at the time of childbirth, and milk ejection from the mammary gland. For this reason, it is also called the birth hormone.
Progesterone:
- It is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species.
- It belongs to a group of steroid hormones called progestogens and is the major progestogen in the body.

Discussion

21.	Which one of the following is not used in organic farming? (a) Snail (b) Glomus (c) Earthworm (d) Oscillatoria
Answer» Snail is not used in organic farming.

Discussion

22.	Sertoli cells are found in- (a) Liver (b) Seminiferous tubules (c) Heart (d) Ovary
Answer» Sertoli cells are found in Seminiferous tubules.

Discussion

23.	My child’s son is my ______. A) daughter B) son-in-law C) son D) grandson
Answer» Correct option is D) grandson

Discussion

24.	My male child is my ______. A) grandfather B) daughter C) grandson D) son
Answer» Correct option is D) son

Discussion

25.

Present perfect with “ever and never”ActivityYes, I have (name)No, I have never. (name).... been to Ooty........................ travelled by plane........................ visited a museum....................... tried swimming in sea........................ gone hiking........................ sung karaoke........................ lost money........................ taken a cold shower in winter........................ eaten a peach....................

Answer»

Activity	Yes, I have (name)	No, I have never. (name)
.... been to Ooty	yes , I have been to Ooty.	No, I have never been to Ooty.
.... travelled by plane	Yes, I have travelled by plane.	No, i have never travelled by plane .
.... visited a museum	Yes, I have visited a museum.	No, I have never visited a museum .
... tried swimming in sea	Yes, I have tried swimming in sea	No, I have never tried swimming in sea.
.... gone hiking	Yes, I have gone biking.	No, i have never gone hiking.
.... sung karaoke	Yes, I have sung karaoke.	No, I have never sung karaoke.
.... lost money	Yes, I have lost money.	No, I have never lost money.
.... taken a cold shower in winter	Yes, I have taken a cold shower in winter.	No, I have never listened to french music.
.... eaten a peach	Yes, I have eaten a peach	No, I have never eaten a peach.

Discussion

26.	Make sentences in the present perfect continuous tense using the verbs in brackets.1. How long _______ ? (are you waiting, have you been waiting, have you waited)2. She _______ in the garden since morning, (is working, has been working, work)3. I ______ this mobile for three years, (am using, has used, have been using)4. The children ________ in the park, (has been playing, have been playing, had been playing)5. The workers _______ higher wages for a long time, (has been demanding, have been demanding, demand)
Answer» 1. have you been waiting 2. has been working 3. have been using 4. have been playing 5. have been demanding

26.

Make sentences in the present perfect continuous tense using the verbs in brackets.1. How long ___ ? (are you waiting, have you been waiting, have you waited)2. She _ in the garden since morning, (is working, has been working, work)3. I this mobile for three years, (am using, has used, have been using)4. The children in the park, (has been playing, have been playing, had been playing)5. The workers ___ higher wages for a long time, (has been demanding, have been demanding, demand)

Answer»

1. have you been waiting

2. has been working

3. have been using

4. have been playing

5. have been demanding

Discussion

27.	Make sentences in the past continuous tense using the verb in brackets. 1. The children ______ (wait) for the bus. 2. The girls ______ (leam) their lessons.3. I ________ (play) in the rain all evening4. Vijay _______. (repair) his car.5. Hari _______ (work) hard to pass the entrance
Answer» 1. were waiting 2. were learning 3. was playing 4. was repairing 5. was working

27.

Make sentences in the past continuous tense using the verb in brackets. 1. The children (wait) for the bus. 2. The girls (leam) their lessons.3. I (play) in the rain all evening4. Vijay _. (repair) his car.5. Hari _____ (work) hard to pass the entrance

Answer»

1. were waiting

2. were learning

3. was playing

4. was repairing

5. was working

Discussion

28.	Complete the story using the past tense of the verbs.
Answer» 1. Knew 2. could 3. was 4. said 5. had 6. found 7. told 8. hid 9. began 10. ran 11. was 12. thought 13. decided 14. fell 15. woke up 16. saw 17. was 18. was 19. ran 20. couldn’t 21. sat 22. got up 23. turned 24. won

28.

Complete the story using the past tense of the verbs.

Answer»

1. Knew

2. could

3. was

4. said

5. had

6. found

7. told

8. hid

9. began

10. ran

11. was

12. thought

13. decided

14. fell

15. woke up

16. saw

17. was

18. was

19. ran

20. couldn’t

21. sat

22. got up

23. turned

24. won

Discussion

29.	A tyre of a truck has a diameter of 0.5 m. How many revolutions would it make, if it travels 275 m?1. 1752. 4503. 2254. 550
Answer» Correct Answer - Option 1 : 175 Given: Diameter of tyre is 0.5 m Distance travelled = 275m Formula used: Distance travelled = no. of revolutions × circumference Circumference = 2πr = πd Calculation: Let no. of revolutions be x ⇒ 275 = x × π × 0.5 = 0.5 × 22/7 × x ⇒ x = 175 ∴ No. of revolutions will be 175

29.

A tyre of a truck has a diameter of 0.5 m. How many revolutions would it make, if it travels 275 m?1. 1752. 4503. 2254. 550

Answer» Correct Answer - Option 1 : 175

Given:

Diameter of tyre is 0.5 m

Distance travelled = 275m

Formula used:

Distance travelled = no. of revolutions × circumference

Circumference = 2πr = πd

Calculation:

Let no. of revolutions be x

⇒ 275 = x × π × 0.5 = 0.5 × 22/7 × x

⇒ x = 175

∴ No. of revolutions will be 175

Discussion

30.	One mol of an ideal gas was taken from `A rarr B` as shown in given figure. Mangutitude of work involved in process is `(R = (25)/(3) (J)/(mol K))`: A. `5KJ`B. `7.5KJ`C. `2.5KJ`D. None of these
Answer» Correct Answer - C One mol of an ideal gas was taken from ……….. `w = -nR Delta T` `= -1 xx(25)/(3)xx300` `= -2500J`

Discussion

31.	If A is a square matrix such that A2 = A then (1 + A)3 - 7A is equal to(a) A (b) 1 – A (c) 1 (d) 3A
Answer» Correct option: (c) 1

31.

If A is a square matrix such that A2 = A then (1 + A)3 - 7A is equal to(a) A (b) 1 – A (c) 1 (d) 3A

Answer»

Correct option:

(c) 1

Discussion

32.	Value of the determinant \|(2,3,4),(5,6,8),(6x,9x,12x)\| is(a) 0 (b) 1 (c) 256x (d) 256x2
Answer» Correct option: (a) 0

32.

Value of the determinant |(2,3,4),(5,6,8),(6x,9x,12x)| is(a) 0 (b) 1 (c) 256x (d) 256x2

Answer»

Correct option:

(a) 0

Discussion

33.	A balloon starts rising from the ground with an acceleration of `1.25ms^-2`. After 8 seconds, a stone is released from the balloon. After releasing, the stone will:A. cover a distance of 40 mB. have a displacement of 50 mC. reach the ground in 4sD. begin to move down after
Answer» Correct Answer - 3 `S=(1)/(2)(a)(t)^(2)` `=(1)/(2)(5/4)(8)^(2)` `=40 m` and v= at `=(5)/(4) (8)=10 m//s` `and-40 = 10t-(1)/(2) gt^(2)` `t^(2)-2t-8=0` `t=4 sec`

Discussion

34.	Three vertices of a parallelogram ABCD are A(1,4), B(-2, 3) and C(5, 8). The ordinate of the fourth vertex D is(a) 8(b) 9(c) 7(d) 6
Answer» Correct option is: (b) 9

Discussion

35.	________ good weather. A) Every person likes B) Every person like C) Everybody like D) Everybody likes
Answer» Correct option is D) Everybody likes

Discussion

36.	Two lines are given to be parallel. The equation of one of the lines is 3x - 2y = 5. The equation of the second line can be(a) 9x + 8y = 7(b) -12x - 8y = 7(c) -12x + 8y = 7(d) 12x + 8y = 7
Answer» Correct option is: (c) 12x + 8y = 7

Discussion

37.	Given system is in equilibrium. All surfaces are smooth. Spring is ideal and blocks are sticked at the ends of spring Now `F_(0)` is removed Average normal contact force between wall and mass `m_(1)` upto the time spring attains its natural length for the first time in newton is (given that `F_(0)=2pi` Newton)
Answer» Correct Answer - 4 if `J` is the impulse imparted to the `m_(2)` by spring after removal of `F_(0)` (up to the spring attains its natural length for the first time.) `(J^(2))/(2m_(2))=(1)/(2)K((F_(0))/(K))^(2)=(F_(0)^(2))/(2K)` `J=F_(0)sqrt((m_(2))/(K))` Same impulse is imparted to `m_(1)` by wall. time requried `=(T)/(4)=(1)/(4)2pisqrt((m_(2))/(K))=(pi)/(2)sqrt((m_(2))/(k))` `ltNgt=(J)/((T)/(4))=(F_(0)sqrt((m_(2))/(K)))/((pi)/(2)sqrt((m_(2))/(k)))=(2F_(0))/(pi)`

Discussion

38.	A satellite is revolving around earth in a circular orbit. At some instant the speed of the satellite is increased `sqrt(2)` times its orbital speed keeping its direction unchanged. Then, the new path of the satellite is :A. circularB. straight lineC. ellipticalD. parabolic
Answer» Correct Answer - D The orbital velocity, `v_(0) = sqrt((GM)/(r))` Its velocity is increased by `sqrt(2)` times, new velocity `v =sqrt(2) sqrt((GM)/(r))=sqrt((2GM)/(r))`= escape velocity The path is parabolic in case of escape velocity.

Discussion

39.	The orbital velocity of a satellite at point `B` with radius `r_(B)` is `v`. The radius of a point `A` is `r_(A)`. If the orbit is increased in radial distance so that `r_(A)` becomes `1.2r_(A)` find the orbital velocity at `(1.2 r_(A))`: A. `(vr_(B))/(r_(A)sqrt1.2)`B. `(vr_(A))/(1.2r_(B))`C. `(vr_(B))/(1.2r_(A))`D. `(vr_(A))/(r_(B)sqrt1.2)`
Answer» Correct Answer - A Using principle of anguklar momentum `L= mv_(ATA)=mvr_(B)` `v_(A)=(vr_(B))/(r_(A)),v=sqrt((GM)/(r))` `(v_(o))/(v_(A))=((r_(A))/(1.2r_(A)))^(1.2)rArrv_(o)=(vr_(s))/(r_(A)sqrt((1.2)))`

Discussion

40.	If cot θ = 1/√3, the value of sec2 θ + cosec2 θ is(a) 1(b) 2 : 3(c) 38/9(d) 5 \(\frac13\)
Answer» Correct option is: (d) 5\(\frac13\)

Discussion

41.	The vertices of a triangle OAB are O(0, 0), A(4, 0) and B(0, 6). The median AD is drawn on OB. The length AD is(a) √52 units(b) 5 units(c) 25 units(d) 10 units
Answer» Correct answer is (b) 5 units

Discussion

42.	Perimeter of a rectangle whose length (l) is 4 cm more than twice its breadth (b) is 14 cm. The pair of linear equations representing the above information is(a) l + 4 = 2b, 2(l + b) = 14(b) l - b = 4, 2(l + b) = 14(c) l = 2b + 4, l + b = 14(d) l = 2b + 4, 2(l + b) = 14
Answer» Correct answer is (d) l = 2b + 4, 2(l + b) = 14

Discussion

43.	The area of a quadrant of a circle where the circumference of circle is 176 m, is(a) 2464 m2(b) 1232 m2(c) 616 m2(d) 308 m2
Answer» Correct option is: (c) 616 m²

Discussion

44.	In figure, the graph of a polynomial P(x) is shown. The number of zeroes of P(x) is(a) 1(b) 2(c) 3(d) 4
Answer» Correct option is: (c) 3

Discussion

45.	In the given figure, a circle is touching a semi-circle at C and its diameter AB at O. If AB = 28 cm, what is the radius of the inner circle ?(a) 14 cm(b) 28 cm(c) 7 cm(d) 7/2 cm
Answer» Correct answer is (c) 7 cm

Discussion

46.	What is the greatest possible speed at which a girl can walk 95 m and 171 m in an exact number of minutes?(a) 17 m/min(b) 19 m/min(c) 23 m/min(d) 13 m/min
Answer» Correct option is: (b) 19 m/min

Discussion

47.	How many electrons must be removed from a piece of metal to give it a positive charge of \( 1.0 \times 10^{-7} C \).
Answer» q=+or- ne 1.0×10^-7 =n×1.6×10^-10 n=1.0×10^-7/1.6×10^-19 =1.0×10^-7+19/1.6 =1.0×10^12/1.6 =10×10^12/16 =0.625×10^12 =6.25×10^11.

Discussion

48.	8. In the circuit diagram, potential difference betwema points \( A \) and \( B \) is \( 200 V \), the potential difference betweme points \( a \) and \( b \) when the switch \( S \) is open, is(a) \( 100 V \)(b) \( \frac{200}{3} V \)(c) \( \frac{100}{3} V \)(d) \( 50 V \)
Answer» 100 v i.e. option a

Discussion

49.

The variation of potential with distance \( x \) from a fixed point is shown in figure. The electric field at \( x=13 m \) is (1) \( 7.5 volt / meter \) (2) \( -7.5 volt / meter \) (3) 5 volt/meter (4) \( -5 volt / meter \)

Answer»

Electric field at x = 13 m

\(E = \frac{-dv}{dx}\)

\(= \frac{-(20-30)}{(14-12)}\)

\( =\frac{10}2\)

= 5 volt/m

Discussion

50.

The variation of potential with distance \( x \) from a fixed point is shown in figure. The electric field at \( x=13 m \) is (1) \( 7.5 volt / meter \) (2) \( -7.5 volt / meter \) (3) 5 volt/meter (4) \( -5 volt / meter \)

Answer»

Electric field at x = 13 m

\(E = \frac{-dv}{dx}\)

\(= \frac{-(20-30)}{(14-12)}\)

\( =\frac{10}2\)

= 5 volt/m

Discussion

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