Students and Teachers Forum

1. What is the full form of IT?

 IT stands for Information Technology in context of computers.        IT  uses computers and software to manage information.        IT deals with electronic computers and computer software to .....

2. What does a computer do?

Modern computers are electronic computer hardware. They do mathematical arithmetic very quickly but computers do not really "think". The software uses the hardware when the user gives it .....

3. Other than talking what are the uses of telephone?

A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.  Side of talking we can use phone line as outgoing and incomming .....

4. What is information? Write the sources of information.

An information source is a person, thing, or place from which information comes, arises, or is obtained. That source might then inform a person about something or provide knowledge about it.  Information .....

5. How to draw a map of Europe?

The above given picture is a political map of europe. Please specify the loation to be inserted in the map of .....

6. Find the co-ordinates of a point R (x,y) on the y-axis such that its distance from a fixed point S(3,4) is 5 units.

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7. What is the full form of ATP?

In biology, ATP means Adenosine tri phosphate.   Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we .....

8. Define government and sovereignty.

Sovereignty may be defined as the ultimate authority in the decision-making process of the state and in the maintenance of order. It is an absolute, supreme and ultimate authority of a state or nation. It is a condition of having full .....

9. What is the critical angle of water?

The critical angle of water-air medium is .....

10. Find the ratio in which a point A (3, y) divides the line joining B (7, -3) and C (-2, -2). Find the value of y.

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11. In each of the following figures, find the measure of arc ACB.

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12. Draw a bearing of 155⁰.

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13. Write the reason why water is used as a cooling agent is radiators.

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14. Find the coordinates of a point P on x-axis which is at a distance of 10 units from the fixed point Q(-3, -8).
 

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15. Solve: x+a + x-ax+a- x-a= 12 

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16. Why is water not used as a thermometric liquid?

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17. find the perpendicular length from the point(5,7) to a straight line of eqn 2x+5y+8=0

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18. Find out the eqn of st line PQ from the diagram.

 

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19. Write a short note on digital thermometer.

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20. Write a short note on maximum and minimum thermometer.

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21. Explain the structure of laboratory thermometre in short.

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22. Find the angle formed by minute hand of a clock with hour hand at half past 9.

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23. Describe briefly the structure of clinical themometer.

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24. Differentiate between clinical thermometer and digital thermometer.

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25. Differentiate between laboratory thermometer and clinical thermometre.

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26. Solve: 6tan2π/6 +1/3 sin2π/3 - 1/4 cosec2π/2

Solution: We know, π = 180o   So, 6tan2π/6 +1/3 sin2π/3 - 1/4 cosec2π/2 = 6tan2(180o/6) +1/3 sin2(180o/3) - 1/4 cosec2(180o /2) =  6tan230o +1/3 sin260o - 1/4 cosec290o = 6(1/√3)2 + 1/3 .....

27. चित्रको जन्म कसरी भयो ?

चित्रकलाको इतिहास निकै पुरानो छ । यसको सम्बन्ध मानव सभ्यताको .....

28. Solve: Sin230o + Sin245o + sin260o
 

Here, Sin230o + Sin245o + sin260o = (1/2)2 + (1/√2)2 + ( √3/2 )2 = 1 / 4 + 1 / 2 + 3/4 = [ 1 +2 + 3 ] / 4 = 6 / 4 = .....

29. Solve: Sin245o + Sin260o + cot245o

Here, Sin245o + Sin260o + cot245o = (1/√2)2 + (√3/2)2 + ( 1 )2 = 1 / 2 + 3 / 4 + 1 = [ 2 +1 + 4 ] / 4 = 7 / 4 = .....

30. Sin230o + Sin245o + Sin260o

Here, Sin230o + Sin245o + Sin260o = (1/2)2 + (1/√2)2 + (√3/2)2 = 1 / 4 + 1 / 2 + 3 / 4 = [ 1 + 2 + 3 ] / 4 = 6 / 4 = .....

31. Solve: 3 tan230o + 4sin230o + 2 cos245o  

Here, 3 tan230o + 4sin230o + 2 cos245o   = 3 ( 1/ √3)2 + 4  ( 1/ 2)2 + 2 ( 1/ √2)2  = 3 x 1 / 3 + 4 x 1 / 4 + 2 x 1 / 2 = 1 + 1 +1 = 3  .....

32. What is carbon dating method?

This method of estimating the age of carbon-bearing materials  up to 60,000 years old is called as carbon dating. Carbon dating is also known as radiocarbon .....

33. How can frog live on both land and water?

Frog is an amphibian. It can live both on land as well as in water. It needs water for reproduction. In tadpole stage, it breathes with the help of gills in water. Tadpoles live in water only. Adult frog lives both on land and in water. Adult .....

34. Transfer the following sentences as indicated in the parentheses.
a) Respect the seniors (into passive voice)
b) The Principal sir asked me whether I had filled up the form (into direct speech)
c) The lady is an engineer. The lady lives in the next door. (Join with relative clause)

a. The seniors should be respected. The principal said, "Did you feel up the form?" The lady who is an engineer lives in the next .....

35. Change the following sentences as directed.
a) Did he take the exam? (into affirmative)
b) The doctor said to me, "What is wrong with you?" (into Indirect Speech)
c) We should inform the police. (into passive)

a. He took the exam. b. The doctor asked me what wrong was with me.     Rule:     - said to is changed in asked/inquired/wanted to know     - the same Wh-word is used as a connectives     - simple .....

36. Rewrite the following sentences selecting the correct options.
a) She is chatting with her friends on ................... internet. (a/ an/ the/ nothing)
b) He is senior .................... me. (from/ to / with)
c) They never told the truth, ...................? (will they / do they/ don't they)
d) You can use my car ..................... you drive carefully. (so that / although/ if)
e) Kalpana, bring the chair ................... (herself / yourself / itself)

She is chatting with her friends on the internet He is senior to me. They never told the truth, do they? You can use my car if you drive carefully/ Kalpana, bing the chair yourself .    .....

37. Fill in the blanks with the correct words given below.
  [are / goes / is / went]
a) One of the teachers .................. absent today.
b) She always ..................... to temple.

a) One of the teacher is absent today. b) She always goes to .....

38. Change the following sentences as indicated in the brackets.
a) Devkota wrote Munamadan. (into passive voice)
b) He asked me what my name was. (into direct speech)
c) They broke some chairs. (into Yes/No questions)

Munamadan was written by Devkota. He said, " What is your name?" Did they break some .....

39. Rewrite the following sentences selecting the correct option from the brackets.
a) My sister is ............... MA student. (a/ an/ the)
b) Students are fond ................ games. (of/ with/ for)
c) Let's do our homework, ......................? (will you/ shall we/ don't you)
d) We go to school ................. knowledge. (for/ because/ in order to)
e) Students must do their homework, ............... (yourself/ themselves/ ourselves)

My sister is an MA student. Students are fond of games. Let's do our homework, shall we? W go to school for knowledge. Students must do their homework, .....

40. How to write message of congratulation?

Kirtipur, Kathmandu 16th March, 2018 Dear Surakshya, I am glad to see your result in today’s Himalayan Times. Your outstanding performance in the secondary examination has secured you a good rank. I conveyed this happy news to my father who .....

41.  Find cube root of 343000.
 

Solution: To find cube root of 343000, = ∛[ 343000] =  ∛[ 343000] =  ∛[ 7 ⅹ 7 ⅹ 7 ⅹ 10 ⅹ10 ⅹ10] = 7 ⅹ 10 = .....

42. What are the types of chromatography?

There are 12 types of chromatography. (1) Column Chromatography (2) Paper Chromatography (3) Thin Layer Chromatography (4) Gas Chromatography (5) High Performance Liquid Chromatography (6) Fast Protein Liquid Chromatography (7) Supercritical .....

43. If  P (2, 3), Q (4, 5) and R (6, 2), find the image of ∆PQR under the translation vector PQ⃗+ QR⃗

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44. If sinθ = a and tanθ =b, show that 1a2 - 1b2 = 1.

Here, a = sinθ b = tanθ Now, LHS = 1/ a2 - 1 / b2         = 1/  sin2θ - 1 / tan2θ         = cosec2θ - cot2θ          [ 1/ sin = .....

45. Multiply:
128.78×100

Solution,  Multiplying a decimals no. by 100 shifts the decimals point 2 no. back. Here,   = 128.78 X 100 = .....

46. Write any two negative impacts of bullying.

Bullying is unwanted, aggressive behavior. It involves a real or perceived power imbalance. The behavior is repeated or has the potential to be repeated. In order to be considered bullying, the behavior must be aggressive and .....

47. ब्राडसा को हुन् ?

ब्राडसा अंग्रेजतर्फका विशेष व्यक्ति हुन् । उनी नेपालमा बसेर जासुस गर्ने गर्दछन् .....

48. A room is three times as long as it is broad and the height is 5 m. If the total cost of carpeting its floor at Rs. 120 per square metre is Rs. 9000 and it has a door of size 1.5 m ⨯ 2 m and a window of size 2 m ⨯ 1.5 m, find he area of 4 walls of the room excluding the door and the window.

Please ask the question in the new question, not in .....

49. Solve: (a - b)x2 - (a + b)x + 2b = 0

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50. In ∆XYZ, XE is the bisector of ∡YXZ. If YO ⊥ XE and OM//XZ then prove that: YM = MZ.

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