The formulae are as follows; a) Area of square = L2 ; Where 'L' is the side of square. b) Area of rectangle = Lx B ; Where 'L' and 'B' are the length and .....

The trigomonetric ratios table;     0 0 30 0 45 0 60 0 90 .....

'Yuri Alekseyevich Gagarin' was the first person to travel in .....

We know, water always flows from greater height to lower height. Water at height exert more pressure. P=dhg Where, P= pressure  d=density of liquid  h=height If water tank is kept at height, it will exert more pressure and it will .....

Do you know what  pressure is? Pressure can be defined as force per unit area. P=F/A  If Force is constant, Pressure is inveresely proportional to Area. Since, the weight of heavy trucks is huge, therefore it exerts huge force on the .....

Have you heard the name of Florence Nightingale?  She was an English social reformer and statistician, and the founder of modern nursing. During the war of Britain, Turkey, France with Russia , she served the wounded soldiers. She often .....

Hippocrates,born around 460 BC in Greece, is called the father of medicine. He became known as the founder of medicine and was regarded as the greatest physician of his .....

999 * [72 / {65+(84/12)}] =999 * [72/ {65 + 7}] =999 * [72 / 72] After this step hope you can solve on your .....

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World's or .....

Reproductive system: Helps in .....

Natural green house effect is advantegous to us. It helps to maintain favourable climatic conditions on earth. However, artificial green house effect is disadvantegous. It increases the concentration of green house gases in atmosphere which is .....

Litre is the unit of volume. Mathematically, 1 m3 = 1000 litre or, 1 litre = 1/1000 m3 also, 1 m3 = 1000000 cm3 so, 1 litre = (1/1000)*1000000 cm3 again, 2 litre = 2*1000 cm3 = .....

The actual .materials that are burned in the cells to produce heat come from foods. Sunlight, air, and exercise never in themselves produce heat. All that they can do is to help keep the cells active so that heat will be .....

Eg: Gasoline or petrol some well known alternative fuels include biodiesel, ethanol, chemically stored electricity (batteries and fuel cells), natural gas, vegetable oil, biomass, and peanut oil, .....

Now,  If the sides satisfy the pythagoras theorem, a2 = b2 + c2 Then, ABC is the right angled .....

When carbon dioxide reacts with water, it forms carbonic acid. CO2 + H2O → H2CO3 Since acids are sour in taste, so the mixture of carbon dioxide and water is .....

Carbon dioxode is heavier than air. So, the ballon filled with carbon dioxide will not fly. In fact , it will fall .....

Two or more than two reactants are brought in contact. Various necessary conditions required such as concentration, pressure, temperature, catalayst etc are managed. After this, they will react with each-other .....

Communicable diseases tranfer from one person to another. Examples of communicable diseases are: diarrhoea, .....

The things that we need in rainy days are Raincoat .....

It is a type of spiral galaxy. Our solar system lies in this galaxy. It has three spiral arms. The centre of milky way galaxy is supposed to have black .....

Please check the question once. I think you wrote wrong .....

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Wolffia globosa is the smallest flower in the .....

Now look closely in the triangle PAD and triangle BCQ. PA = CQ (S)  [Given] <PAD = <BCQ  (A)  BC = AD (S) [Opposite sides of a parallelogram are equal] Therefore, Traingle PAD is congruent to Triangle BCQ  (SAS .....

Take this example to understand more about demand. Suppose you were out in the market with your friends. When passing by a clothing store, you come across a beautiful dress. You want to purchase that dress from your heart. You know that you are .....

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Kim is  25 .....

The force of attraction between any two bodies is gravitational force. It acts between them by virtue of their masses. It is directly proportional to product of masses of two bodies and  inversely proportional to square of distance between .....

No one knows Only theories made by .....

अक्षर संरचना भनेको अक्षर निर्माण भएको तरिका वा प्रक्रिया हो । नेपालीमा एउटा स्वरको सङ्ख्या .....

Set A and set B may have common elements. In such case, you do not repeat the common elements in the sets. You keep the repeated elements only one time along with the other .....

मानिसहरु प्रायः अशान्त नै देखिन्थे ।  जतातै जुवाका खाल थिए । कसैको गोजी रित्तिएको थियो .....

Look at triangle ABP and triangle QCD, i. AP = QC (S)  [ Given] ii. Angle BAP = Angle QCD [ Alternate angles] iii. AB = DC (S) [ opposite side of parallelogram] Hence, triangle ABP is congruent to triangle QCD. That means, PB = .....

Echo is a type of reflection of sound. In echo, sound produced from a source repeats after a while. The distance needed to form an echo is equal to 17.2 metres. A small room does not have enough space to form an echo. So, echo is not heard in a .....

The series of stages in form and functional activity through which an organism passes between successive recurrences of a specified primary stage A series of stages through which something passes during its lifetime This is life .....

You may have learnt about critical angle. Let a ray of light passing from denser medium to rarer medium. If the angle of incidence is equal to the critical angle of the denser medium,  Then the refracted ray of light makes 90o to the .....

In rainy reason, rain drops disperse light rays. The light rays disperse in sky making a colourful arc which we call a .....

X-rays are a form of electromagnetic radiation, as are radio waves, infrared radiation, visible light, ultraviolet radiation and microwaves. One of the most common and beneficial uses of X-rays is for medical imaging. X-rays are also used in .....

You might have learnt that, h2 = p2 + b2 sinA = p / h and cosA = b / h Now, put the value of sinA and cosA, we get, sin2A + cos2A = (p / h)2 + (b / h)2 Now, simplify and use pythagoras theorem, you will get the .....

You know,  Acceleration due to gravity on the surface of earth is approximately equal to 10 m/s2. Thus,  Force = 16 × 10   Which is equal to 160 .....

In the given figure,  Force is applied to lift a load. So, the direction of force in lifting the load is vertically upward. A person is carrying the load to cover distance in a horizontal path. The direction of movement of load is .....

Apparent depth of pond is less than real depth of pond due to the refraction of light. When rays travel from denser medium to rare medium it bends away from the normal and the actual depth appear to be raised. Imagine an object at the bottom of .....

There are 133 municipalities in .....

X-rays aren't safe because radiation exposure can cause cell mutations that may lead to cancer. The amount of radiation you're exposed to during an X-ray depends on the tissue or organ being .....

Do you have a refrigerator at home? Have you ever tried putting magnetic buttons on the door of the refrigerator? What happens? The magnetic button gets stuck there Right? Magnetic force is the attraction or repulsion that arises between .....

Power of lens is given by inverse of the focal length of the lens. And magnification of lens is given by the ratio of image and .....

A parallel circuit is a closed circuit in which the current divides into two or more paths before recombining to complete the circuit. Each load connected in a separate path receives the full circuitvoltage, and the .....

Your nose lets you smell and it's a big part of why you are able to taste things. The nose is also the main gate to the respiratory system, your body's system for .....