i) What is the unit of distortion? (ii) What is the relationship between force and pressure? (iii) Give an example of a useless ball. (iv) Name of an acid oxide Write. (v) What is the value of mechanical equivalence of heat in c.g: s method? (vi) What is surface tension? (vii) Write the power level. (viii) of the word Intensity is measured in which unit? (ix) Minamata rage is the result of which pollution? (x) What is the Young coefficient?
Answers
Answer:
1. Harmonic distortion may be expressed in terms of the relative strength of individual components, in decibels, or the root mean square of all harmonic components: Total harmonic distortion (THD), as a percentage. The level at which harmonic distortion becomes audible depends on the exact nature of the distortion
2. .When a force is exerted on an object it can change the object's speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area. Pressure can be found using the equation pressure = force / area. Therefore, a force acting over a smaller area will create more pressure.
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4. For example, sulfurous acid (SO2), sulfuric acid (SO3), and carbonic acid (CO2) are acidic oxides.
5. (in any system of physical units) the number of units of work or energy equal to one unit of heat, as 4.1858 joules, which equals one small calorie..
6. the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
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8. In physics, intensity is power per unit area. The units are watts per meter squared. The area is measured on a plane perpendicular to the direction of wave propagation.
9. A form of poisoning, Minamata disease is a disease of the central nervous system, caused by the consumption of fish and shellfish contaminated with methyl mercury compounds discharged into the environment as factory waste etc.
10. Young's modulus is a measure of the ability of a material to withstand changes in length when under lengthwise tension or compression. ... Sometimes referred to as the modulus of elasticity, Young's modulus is equal to the longitudinal stress divided by the strain.
Explanation:
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