Alay was going to buy a tungsten filament bulb. His son Raj told not to buy that bulb. Hesuggested to buy a CFL which consumes much less power than the tungsten bulb.Divya also joined the discussion and requested her dad to buy a LED bulb which did notcreate pollution as created by CFLand much greater life span than CFL.Now answer the following questions,What is power?Why tungsten filament bulb consumes more power?E) How CFL create pollution?iv) What values were shown by Divya?
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1. What is power ?
‣ The amount of energy converted per unit time is called Power.
2. Why tungsten filament bulb consumes more power ?
‣ Tungsten filament bulb consumes more power because it makes more heat than light and about 90% of the energy consumed just makes heat.
3. How CFLs create pollution?
‣ CFLs contain 3–5 mg of mercury and mercury is poisonous for landfills and waste incinerators where it gets released and contributes to air and water pollution.
4. What values were shown by Divya?
‣ Divya is creating awareness about pollution and helping others get benefited
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