In this article, we shall study the concept of radioactive decay, decay constant, and half life of radioactive substance. Transformation of radioactive element into another element (radioactive or non-radioactive) is known as radioactive decay or disintegration. In radioactive decay, the nucleus of a radioactive element called parent undergoes a spontaneous change accompanied by the emission […]
Radius of curvature of the curve y = f(x) is given by Example 01: Find the radius of curvature of the curve y = x3 at (2, 8) Solution: Equation of curve is y = x3 ………. (1) Differentiating both sides w.r.t. x (dy/dx) = 3×2 ………………. (2) (dy/dx) at P(2, 8) = 3(2)2 = […]
Q101. What does Article 38 of the Indian Constitution provide for? Article 38 of the Indian Constitution directs the Stateto secure a social order for the promotion of the welfare of the people. In this regard, it provides for two provisions as follows: The State shall strive to promote the welfare of the people by securing […]
Q91. Somkuwar committed sati at Rampur. People of Rampur worship her and build a temple of sati. a. What are the provisions and penalties under Sati Prohibition Act 1987 for glorification of sati and building a temple? According to Section 2(b) of the Sati Prohibition Act 1987, “The act of glorification of sati” includes the […]
In last article, we studied preparations of alkenes. In this article, we shall study reactions of alkanes. Reactivity of Alkanes (Less Reactivity): Alkanes are saturated hydrocarbons. They do not contain any functional group. Hence they are less reactive. Under normal conditions, they are not acted upon by concentrated acids, alkalies, oxidising agents etc. Branched-chain alkanes […]
In the last article, we have seen what is meant by alkanes, their classification, and nomenclature. In this article we shall study preparations of alkanes by different methods. From Unsaturated Hydrocarbons: Preparations of Alkanes From Alkenes: Alkanes are obtained by passing the mixture of alkenes and hydrogen over Raney nickel (Ni), or platinum(Pt) or palladium […]
Science > Physics > Newton’s Laws of Motion > Reference Frames Before studying Newton’s laws of motion, we shall understand a very important concept of reference frames in this article. Motion is a Relative Concept: Motion is always with respect to the observer. Consider a person A is standing in a train moving in the […]
Q81. Discuss in detail the provisions of Maintenance of wife and children under the Adoption and Maintenance Act, 1956. Maintenance of wife (Section 18): Subject to the provisions of this section, a Hindu wife, whether married before or after the commencement of this Act, shall be entitled to be maintained by her husband during her […]
Q71. What is Maternity Benefit? Maternity Benefit is a payment made to women who are on maternity leave from work. Every woman shall be entitled to, and her employer shall be liable for, the payment of maternity benefit, which is the amount payable to her at the rate of the average daily wage for the period […]
Q61. Write short note on “International Labour Organisation”. The International Labour Organization (ILO) is a UN specialized agency which seeks the promotion of social justice and internationally recognized human and labour rights. The ILO was founded in accordance with Part XIII of the Treaty of Versailles, commonly called the Labour Section on April 19, 1919, […]