Explain these terms-:1).differentiate reflection and Refraction
2)which less is used for myopia
3)Define the SI units of-current, charge, power, work.
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Explain these terms-:1).differentiate reflection and Refraction
2)which less is used for myopia
3)Define the SI units of-current, charge, power, work.
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2) concave lens
3) current - ampere, charge - coloumb, power - watt, work - joule.