Students and Teachers Forum

Calcium can be symbolized as 20Ca40.  Where, 20 is the atomic number, Ca is the symbol and 40 is the atomic .....

We get Brium (Ba) and Krypton (Kr) from Uranium (U) after nuclear .....

Hydrogen is the element that has a proton and an electron but no .....

1 amu = 1.6605 x 10-27 .....

Cartography is the study and practice of making maps. Combining science, aesthetics, and technique, cartography builds on the .....

All the atoms are not identical in size.  The diameter of an atom ranges from about 0.1 to 0.5 nanometers (i.e. 1 × 10−10 m to 5 × .....

BEC (Bose–Einstein condensate) is the fifth state of matter. A Bose-Einstein condensate is a group of atoms cooled to absolute zero (0 K) temperature. When they reach that temperature the atoms are hardly moving relative to each other; .....

Anjali, the first thing that we should do is that we should provide education to the people. They should be closely observed and assisted for their proper growth. This will make them a good critical thinkers who can decide on their own. Hence, .....

It breaks the harmonious relation in a soceity or a nation. Conflict delays the development of a society. For example, the Maoist insurgency had delayed the developmental activities in Nepal. But, conflict can also be taken as the fundaments of .....

Fundamental rights have been safeguarded for the Nepalese people as the human rights are:

Right to live with dignity. Right to freedom. Right to equality. Right to communication Right to justice. Right against torture. Right against .....

Different rehabilitation centres have been established for the victims of natural .....

.....

.....

Scientific notation is a special way of expressing numbers in the power of 10. It is a standard way of writing very large and very small numbers so that they are easier to compare and compute. In scientific notation, a number is written in the .....

एउटा घटना शान्तदास मानन्धरद्धारा रचिएको कथा हो ।  अहिलेका विद्यालय स्तरका विद्यार्थीहरुको .....

You know about European countries, Japan etc., don't you? You know right. These countries are very developed. Before coming to this stage, they waged many wars and lost millions of life. Do you know about 1st and 2nd world .....

द्वन्द समाजका मानिसहरु बिच उत्पन्न बेमेल हो। शक्ति, स्रोत र पहुचको प्राप्तिको लागि .....

Silver is considered as the best conductor of heat.  Graphite is a shining .....

A function relates an input to an output. It is like a machine that has an input and an output. And the output is related somehow to the input.   f(x)   "f(x) = ... " is the classic way of writing a function.  And .....

एउटा घटना शान्तदास मानन्धरद्धारा रचिएको कथा हो ।  अहिलेका विद्यालय स्तरका विद्यार्थीहरुको .....

Protium (1H1) is the normal hydrogen with atomic mass 1 (approximately). It has one proton and zero neutron. Deuterium (1H2) is the heavy hydrogen with atomic mass 2. It has one proton and one neutron. Tritium (1H3) is the .....

There is a large degree of similarities in humans and chimpanzees. They are believed to be 96 percent similar genetically.  The social behaviour of a chimpanzee is quite similar to that of a human.  The body structure is also .....

Reptilia is the thrid class of vertebrata.  The first class i.e. Pisces includes fully aquatic animals. The second class i.e. Amphibia includes partially aquatic animals.  They can live on land at adult stage but early stages of their .....

Death parts of dinosaur can be found as in the form of .....

Here, discount percent = 20% VAT percent = 10% Selling price with VAT = Rs. 2376          [as the price of an item after adding VAT is selling price with VAT.]  Let the marked price of a watch be Rs. x. We .....

उपर्युक्त विषयमा वादविवाद कसरी लेख्ने भन्नेबारे जानकारी गराइएको छ । त्यसै ढाँचा अनुरुप .....

एउटा घटना शान्तदास मानन्धरद्धारा रचिएको कथा हो ।  अहिलेका विद्यालय स्तरका विद्यार्थीहरुको .....

यसले सामाजिक न्याय कायम गर्ने राष्ट्रको सोच र लक्ष्यलाई नकारत्मक असर पुर्याउदछ। छुवाछुत .....

Let CP of frist watch =  y Then second watch =  400 - y. Now for 1st watch, SP1 = y + 5 % of y =  105y /100 For 2nd watch,  SP2 = (400 - y.) - 5 % of (400 - y.)         = 400 - y.- 5 / 100 .....

  Spring: In the spring, seeds take roots and vegetation begins to grow. The weather is warmer and rainfall takes place. Summer: In summer, temperatures may increase to their hottest of the year. Droughts may occur at some places and some .....

Soil can be conserved by various methods. They are: By afforestation. By applying compost manure instead of chemical fertilizer. By using crop rotation method while cultivating. By doing terrace farming on .....

The rocks which are formed by the cementing of weathered rock particles and minerals at high pressure are called sedimentary rocks. For eg; Shale, Coal, Limestone .....

Soil is formed by the weathering of .....

Have you ever seen such types of rock before? They are igneous rock. An igneous rock are those rock which are  formed by the cooling and crystallization of molten rock. Over 90 % of the rock on the earth are igneous rock. They are also the .....

The hard materials found in the earth's crust which consist of different minerals are called rocks. Rocks are found in different texture, color and forms. On the basis of origin rocks, rocks are classified into three categories. They are: 1. .....

२ राज्यहरुसँग पर्यप्त जनशक्तिको अभाब छ ।  राज्यहरु ठुला योजना सन्चालनको निम्ती .....

उदाहरणको लागि, अ्मेरिका, जापान, चिन जस्ता शक्तिशालि राष्ट्रहरु केवल दक्षजनशक्तिकै कारण आजको .....

.....

.....

.....

The SI unit of area is squared metre .....

.....

.....

.....

Ordinary clocks(mechanical or electronic) measure time by counting, quartz crystal vibrations or mechanical pendulum oscillations. Both can vary with time, because of external factors and wear and tear. Atomic clocks measure the oscillations in .....

This is why,  the only force has been acting on ball is earth’s gravity, due to this force, fall returns back after reaching certain .....

The Constitution 2072  declares that Nepal is a secular state. It guarantees the rights of citizens .....

- समय-समयमा विकास आयोजनाहरुको अनुगमन र मुल्याङ्कन नभएको कारण विकास   आयोजनाहरु प्रभावकारि .....

.....

म, हामी, तँ, तिमी, तपाईं, हजुर, तिमीहरू, तपाईंहरू, ऊ, उनी, त्यो, तिनी, उहाँ, उनीहरू आदि सर्वनाम .....