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Optical activity is the property of an organic substances which refers to the character of an organics as a result of which, it rotates…

Optical activity is the property of an organic substances which refers to the character of an organics as a result of which, it rotates plane polarized light source which is produced by passing it through Nicol prism. Such phenomenon occurs whenever polarized light is allowed to passed through organic solutions and the compounds which shows such characteristics are categorized as optically active compounds/substances. Any chemical compound which is capable of optical rotation are termed as optically active compounds. As such two enantiomers are very alike, mirror images of each other and share many characteristics such as same boiling point, melting point, colour, density as well as solubility. In other words, an enantiomers pair has similar physical characteristics except the way they interconnect with polarized light sources. Optical activity of a compound is the ability of that compound to oscillate and rotate polarization plane when the solution of that compound is exposed to plane-polarized light. We can calculate the degrees of rotation of plane polarized light source by the instrument called polarimeter of Perkin-Elmer Model 141 using a Na lamp of 584 nm (D-line) which is fitted with digital system for recording.

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How can you find the center of mass of a water molecule?

In science, center of mass is an important point with respect to an object. It is defined as an exclusive point for a mass that is…

In science, center of mass is an important point with respect to an object. It is defined as an exclusive point for a mass that is occupying space or distributed in space, such that the weighted relative position of its distributed mass adds up to zero. This is also called as the balance point of the object. In physics, it can be explained as that point, where on application of force, will result in a linear acceleration but with no angular acceleration. This implies that there will be no angular movement of the body. This is an imaginary point at which the entire mass of the object under consideration can be thought as concentrated. In the case of a single rigid frame, this center of mass is static in relation to the body itself. If the rigid body possesses a uniform density, then center of mass will be positioned at the centroid.

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Median:

Median:

In the field of Statistics and Probability, a MEDIAN is known as — value that separates the highest value or higher half to that of the lower half value in a set of Data. This can be found for a population or sample etc.

Mean:

The arithmetic mean for a data set is the average of the values and is a central value for the finite number of sets.

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When a liquid moves in small areas without the aid of external forces like gravity, or even in opposition to them, the process is known as…

When a liquid moves in small areas without the aid of external forces like gravity, or even in opposition to them, the process is known as capillary action. Liquids can be drawn up between the hairs of a paintbrush, in a narrow tube, in porous materials like plaster and paper, in non-porous materials like liquefied carbon fibre and sand, or in a biological cell. Intermolecular forces between the surrounding solid surfaces and the liquid give rise to this. If the tube’s diameter is small enough, adhesion forces and surface tension between the liquid and the container wall push the liquid.

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Students frequently have problems finishing the Math Paper on time because of the long and complex computations needed to solve the…

Students frequently have problems finishing the Math Paper on time because of the long and complex computations needed to solve the questions of Maths. Usually, students stress during problems solved during tests since they cannot conclude the paper on time. Just because they are running out of time, they have to leave certain questions reluctantly and very often it has been shown that they can accomplish quite easily the ones they leave. This is a highly deceptive scenario.

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Nobody is born topper. Yes, people do have natural skills and aptitudes for some things. Apart from that, anyone may excel in board examinations or competitive exams with appropriate coaching and…

Nobody is born topper. Yes, people do have natural skills and aptitudes for some things. Apart from that, anyone may excel in board examinations or competitive exams with appropriate coaching and hard effort. As a result, we’re here to provide some advice on how to improve your study habits and achieve a perfect score in Physics, Chemistry and Mathematics in 12th grade.

To obtain a good mark in the board test as well as the entrance exam, you need follow CBSE exam preparation guidelines for class 12. We have compiled a list of the best CBSE Class 12 Board Preparation Tips to assist you triumph in examinations. If students study diligently, the best CBSE Class 12 preparation tips provided in this post will help them attain their goal score good marks in Physics, Chemistry and Mathematics.