SI units are the fundamental units of the different fundamental quantities. SI system mean the system of measurement in which fundamental quantities are measured in some fundamental units. So, SI unit are the basis of fundamental .....

Germination is the process of developing seed into a new plants. .....

Respire mean to inhale and exhale air for the purpose of maintaining life; .....

Cultural heritage implies a shared bond, our belonging to a community. It represents our history and our identity; our bond to the past, to our present, and the future. Cultural heritage often brings artifacts (paintings, drawings, prints, .....

Solution : f(x) = 2x+5 g(x) = (x-5)/2 fg(x) = f[g(x)] = f [(x-5)/2] = 2[(x-5)/2] +5 = x - 5 + 5 = .....

The extended form of MKS system which is accepeted all over the world is called Standard Unit. Some of the physical quantities along with their SI units are .....

The principles of sustainable development are:

Some of the advantages of email are  : cheap - sending an email costs the same regardless of distance and the number of people you send it to convenient - your message will be stored until the recipient is ready to read it, and you can .....

Earth's gravity is 6 times more than the gravity of the moon. So, a person can jump 6 times more on moon than on the .....

Newton's universal law of gravitation states that "every body in the universe attracts every another body with a force which is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the .....

Solution : x - 12x/100 = (100x-12x)/100 = .....

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महाकवि लक्ष्मीप्रसाद देवकोटाले मुनामदन लेखेका हुन् .....

The tropical climate occurs between 15o to 30o latitude. Some of the features of this kind of climate are: Day time temperature may rise as high as 49oC and the night temperature may fall as low as 10oC. The region is very poor in .....

Roman number of 30 is .....

Amount of matter contained in a body is called mass. Its SI unit is Kilogram Kg. The multiple and submultiples of mass is required easiness in measurement. For example: A wholesaller needs 1 quintal of rice. Its is nearly impossible to weigh 1 .....

The volume of a spherical solid can be determined using formula : V = 4/3 x π x r3 where, v = volume of spherical solid r = radius of the spherical .....

Solution : 2.56 x 107 mm2 = ?? We know, 1 cm   = 10 mm and, 1mm = 1/10 cm Then, 2.56 x 107 mm2 = 2.56 x 107 x 1/10 x 1/10 = 2.56 x 105 .....

Some examples of derived quantities are area, volume, force, acceleration, .....

Solution : (x - 1/5 )2 = x2 - 2.x.1/5 + (1/5)2 = x2 - 2x/5 + .....

A collection of elements is known as a subset of all the elements of the set are contained inside another set.

Set A is said to be a subset of Set B if all the elements of set A are also present in Set B.

Example: If set A has {X, .....

You may have learnt that  the formula to calculate the amount of work is Work = force ˟ distance Work depends on other physical units. Work is a derived quantity. Again, force = mass ˟ acceleration So, we can write work .....

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Rome is the capital city of .....

Messier 87 is a supergiant elliptical galaxy with about 1 trillion stars in the constellation Virgo. M87 lies about 55 million light years from Earth.. the mass is (2.4 .....

The roman number of 100 is C . and D = 500 and M = .....

 solution : 50 - 20 = .....

A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults .....

Solution : MP = SP - d , where Mp = marked price, SP = selling price, d = discount .....

प्रश्नले मागेको कुरा प्रष्ट भएन त .....

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Solution : g(x) = x + 2/5 h(x) = 3x - 2 gh(x) = ? we   have , gh(x) = g[h(x)] = g(3x-2) = (3x-2)+ 2/5 = 3x  - .....

Initial number of students= 80 Initial provision will last for 40 days After 10 days, remaining provision would last for 40-10= 30 days for the same 80 students But number of  students increases = 80+20= 100 Let remaining provision will last .....

You might have lightbulbs at your house. The lighbulbs glow because of flow of electricity in a wire. This flow of electricity in a wire is called electric .....

We all have used or heard of Google, YouTube, Facebook, Yahoo etc. They can be accessed from all over the world if the device is connected to internet (Mobile data, WiFi etc). Such websites are hosted on the Internet. The global .....

A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send .....

Solution : If selling price SP and discount amount d is given , then MP = SP + .....

Living being changes their body structure from smaller to big is called  growth .....

Solution : Initital velocity u = 0 m/s Final velocity v = 50 m/s time taken t = 10 sec acceleration a = ? we know, a = (v - u) / t = (50 - 10) / 10 = 40 / 10 = 4 m/s2 so,the acceleration of car is 4 .....

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those quantities which do not depend on any other physical quantities for their measurement are called fundamental quantities. Examples: Mass, Length Those quantities which depend on the fundamental quantities for its measurement are .....

Mass is defined as the amount of matter contained in a body. If force F and acceleration a is given then, m = F / .....

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