✍️ CRR Cash Reserve Ratio is the minimum fraction of total deposits of a bank’s customers that banks have to hold as reserves with the central bank. ✍️ SLR Statutory Liquidity Ratio is the ratio of liquid assets to the net demand and time liabilities. ✍️ LAF Liquid Adjustment Facility is a tool to allow banks to borrow money through repurchase agreements. It consists of repo and reverse repo operations. ✍️ MSF Marginal Standing Facility allows scheduled banks to borrow funds overnight from RBI against approved government securities. ✍️ MSS Market Stabilization Scheme is a monetary policy intervention by RBI to withdraw excess liquidity by selling government securities in the economy. ✍️ OMO Open Market Operations refers to the buying and selling of government securities in the open market so as to expand or contract the amount of money in the banking system. ✍️ REPO Repo...
Sound is a form of energy which stimulates our sense of hearing. Everyday, we hear many sounds all around us all the time: the radio blaring, the telephone bell ringing, students, friends’ talking to each other and so on. How is sound produced? If we touch a silent bicycle bell we do not find anything special in it. If we ring the bell and touch it gently, we’ll find that the bell is vibrating continuously till such time that it stops ringing. As it is ringing if we hold it tightly, the vibrations will stop and no sound will be heard. This clearly tells us that sound is produced by vibrating bodies. The vibrating body has a certain amount of energy which travels in the form of sound waves. This energy is provided to it by some outside source. Sound can be produced by the following methods: (i) by vibrating strings as in veena, violin, etc., known as string instruments. (ii) by vibrating air as in flute, trumpets, etc., known as wind instruments. (iii) by vibrating membranes as...