Red colour is used for stopping vehicles because it has a longer wavelength. As the wavelength is longer, the scattering of light will be less... View Article
Most electrical heating devices use alloys because they have high resistivity and the melting point is also high in them. Nickel and chromium... View Article
The random motion of particles to attain equilibrium of concentration is called diffusion. As the size of an organism increases, it's surface... View Article
A mixture is a combination of matter such that the components used in the formation of the mixture can be separated again. While a compound is a... View Article
Answer: Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. The average kinetic... View Article
Following are the reasons why iron pillar is still rust-free: a) The purity of the iron that is used in the construction of the pillar b) The... View Article
Answer: Given, A = 30° 2A = 2 x 30° = 60° Therefore, sin 30°= To remember the trigonometric values given in the above table, follow the... View Article
Science is defined as a system of knowledge related to the physical world and the phenomena related to this physical world. It is an unbiased... View Article
Answer: Given, Diameter of a wheel = 1.26cm Number of revolution = 500 Distance travelled = Circumference of circle x 500 revolution We... View Article
Given that 5.6g of nitrogen Atomic mass of nitrogen = 14u We know that, Molar atomic mass of nitrogen = 14g mol-1 Molar mass of N2 = 2 x 14g... View Article
Following are the steps to be followed for the construction of triangle ABC: a) Draw a line segment AB = 6cm b) AX is the ray that needs to be... View Article
Given, Parallelogram ABCD pAE = 8cm AB = 16cm CF = 10cm In a parallelogram, we know that opposite sides are equal. Therefore, CD = AB =... View Article
When a rubber band is stretched, the force acting on the rubber band is known as the elastic force. When a material is stretched and returned... View Article
Hemoglobin is important for the human body because they carry oxygen from lungs to other tissues of the body. It also helps in transporting... View Article
Answer: Given The concave mirror produces three times enlarged image of an object placed at 10cm in front of it. Find out We need to find... View Article
We need water for all our day-to-day activities. Each and every process is in connection to the water we use. Nowadays, we waste water too much.... View Article
Following are the steps followed for naming the elements in the periodic table: Since elements names are not proper nouns, IUPAC names are... View Article
a) Ethyne Molar mass of C2H2 = 2 x atomic mass of C + 2 x atomic mass of H = 2 x 12 + 2 x 1 = 26u b) Sulphur molecule Molar mass of S8 = 8 x... View Article