Students and Teachers Forum

Here, GC = GB, Radii of same  circle. AF = FG   , Radii of same  circle. So, BF = BG - FG = 12cm - 10 cm              = .....

In the given triangle,  All the angles are less than 90o. So this triangle is called acute .....

We know,  a4 + b4 = ( a2 + b2) 2 - 2a2b2 So we must subtract 2a2b2 from a4 + b4 to make it complete .....

Here, Velocity of bus = v = 108km/ hr = 108 x 1000 / 3600 m/s = 30m/s Time = t = 5 sec. Acceleration = a = v / t = 30/5 m/s2 We know,  Force= F  = ma              = 2500 x 30/5      .....

यस्ता कार्यहरुबाट जैविक खेतीलाई अभाव हु्न नदिएमा जैविक खेतीमा मानिसहरुले रुची बढाउनका साथै .....

A developed society is one which is based on science and technology. The developed society is highly advanced which have all the facilities like transportation, communication, and other facilities. A developed society is considered as civilized .....

Social harmony is the state of friendly relations to one another in a society or a nation. The state of no discrimination in terms of caste, religion, culture, language, etc. is what we call social harmony. Social harmony is the prerequisites of .....

Here,           Let the purchased price for a tumbler = Rs. x.           Total number of tumblers = 1000           Loss (L)            .....

A capitalist society is a social order in which private property rights and the free market serve as the basis of trade, distribution of goods and development. In a capitalist society, the means of production are privately owned and the producers .....

Karl Marx presented society on the basis of the class struggle. He presented a society in "haves and have-nots". Haves are those who have the control over the resources available in the society and exploits the .....

Here, Length of side of a square = L =8cm Area of square A = ? We know area of square = L2 = L x L                                        .....

Development is the positive and the progressive change in somebody or something. It is responsible for the improved living standard of the .....

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Write True or False.

The little fish was very hungry. .....

The developed society is highly advanced which have all the facilities like transportation, communication, and other facilities. The economy of developed society is based on .....

The resources are the key to the development of a nation. The resources like human resources, capital resources and natural resources are the building blocks for the all-around development of a nation. If these resources are utilized .....

s, p, d, and f are called sub shells of shells. They contain the following number of orbitals respectively, where every orbital can hold up to two electrons maximum: s: 1 orbital, 2 electrons. p: 3 orbitals, 6 electrons. d: 5 orbitals, 10 .....

So, sound depends on the following factors: 1. Pressure of the medium.     (the speed of sound is directly proportional to the density of the medium). 1. Density of the medium.     (the speed of sound is inversely .....

The correct answers:  Will you?-----------------(less polite) Would you?------------------(quite .....

Answers: a) Never tease the poor, will you? (with negative imperatives only will is possible) b) Dhruba goes to school on foot.    - How does Dhruba go to school? (Wh-word+auxiliary+Subject+main verb + Object) c) Susma did .....

As I was leaving my friend's office at noon, I had no idea where I had parked my car. I went to the police station and reported that I had lost the small red car somewhere. One of the policeman said that if he were me he would have looked for it .....

2.The air density and air pressure are much lower    in the stratosphere than troposphere. 3. The troposphere is warmer than the stratosphere. 4. All the weather phenomenon like rain, fog, hailstorm, dew, frost etc.     .....

Every living organism on earth needs some basic things to survive. All organisms need food for the energy required to live and grow. They all excrete (get rid of) waste products, and detect changes in their .....

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Here,  In 600 revolutions, wheel covers 2.112 km. or, In 1  revolutions, wheel covers 2.112/ 600 km. = 3.52 m We know, 1 revolution = Circumference of Wheel So, 2π r =  3.52 m or, 2 x 22 / 7 x r =  3.52m or, r .....

Work is done whenever a force moves something over a distance. You can calculate the  work done, by multiplying the force by the distance moved in the direction of the force. Work done = force  x  distance moved in the direction of .....

Hence, the x co-ordinates of the points of meeting are -3, and 4. Therefore, x = -3, .....

 ‘डिजिजिएक्स’ भनेको स्पष्ट भएन है । स्पष्ट बुझिने गरी प्रश्न पठाउनुहोला ल .....

∡ADB = 90∘ [ inscribed angle on semicircle] ∡ADB + 25∘ + ∡BAD = 180∘ [ being interior angles of the triangle] or, 90∘ + 25∘ + ∡BAD  = 180∘ or, ∡BAD  = 180∘ - 115∘ = 65∘ Now, ∡DCE .....

The temporary hardness of water can be removed by treating it with lime water i.e. calcium hydroxide, Ca(OH)2. This method of removing temporary hardess is called as Clark's .....

1.The cost is relatively much higher than organic fertilizers. 2.Besides the essential nutrients available for plants’ use in inorganic fertlizers, they also contain other     compounds and salts. Plants are unable to absorb .....

You might have seen or heard about sea horse. Seahorses are like fishes. They show characters similar to the fishes. So, they are kept in the class .....

Animals and some non-green plants cannot prepare their own food and they depend on other organisms (like plants) for food. So, they are called as .....

You know that we see objects with our eyes.  Image of these object are formed at the retina at the back of the eye The message of image from the retina is sent to the brain by the nerve known as optic .....

1. Work  is said to be done if due to application of an external force on a body there is actual displacement of the body, except when the displacement is perpendicular to the direction of force. Power is define as the rate of donig .....

We know,  Refractive index of water = 4/3 = Real depth/Apparent depth.  or, 4 / 3 = Real depth/Apparent depth or,  4 / 3 = Real depth/ 5m or,  4 x 5m / 3 = Real depth Hence real depth of pond = 20/ 3 .....

Factors to which speed of sound in gaseous medium depend: 1) Pressure 2) Temperature 3) .....

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There is not much a heat imbalance with O degrees C air to tip over the edge. In fact, exactly and uniformly O degrees would mean an extremely long time to chill the water even if that, too, is O C just as the air. If the air and surrounding .....

Since the two polynomials are equal, the cofficient of like terms must be equal. Hence, Comparing the coefficient of x2, -(a + 2) = 4 or, -a - 2 = 4 Therfore, a = -6. And, Comparing the coefficient of x, 1 = (b -1) Hence, b = .....

So, first 10 terms can be express in sigma notation as, ∑10n=1 (3n - .....

When you heat limestone the calcium carbonate breaks down into calcium oxide (quicklime) and carbon dioxide. Reaction: CaCO3      →  CaO + .....

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Two causes of klinefeltars syndrome are: 1. When the genetic material in the egg does not separate correctly during cell division.  2. When the genetic material in the sperm does not separate correctly during cell .....

Here,  Mass of Sodium nitrite = mass of solvent = 10 g Mass of Wter = Mass of solute = 25 g We know,  Solubility = Mass  of solvent / Mass of solute x 100                  = 10g / 25g .....

Here, given function is, g(x) = 2x/3 Let, domain 'a' has image 6, then, g(a)  = 6      or, 2a/3 = 6    or, a = 18/2 = .....

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Cellular respiration takes place in each and every living cell. The mechanism of 'breathing' in unicellular organisms is different from multi-cellular organisms. Single celled organisms like Amoeba, Paramoecium etc. respire within their .....

A bar magnet is made in shape of a 'bar'. 3. Lodestones were origially used in developing the compass.     A bar magnet is used for different purposes like school experiment,     industry, magnetize objects .....