Question
Which of the following glass absorbs ultraviolet rays
which are harmful for the eyes.Solution
Potash glass are used for chemical apparatus, breakers, flasks, funnels Optical glass is used for making lenses, prisms and optical instruments like telescopes and microscopes Crystal glass are used to make decorative items
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For which class of students is the National Talent Search Examination (NTSE) conducted by the National Council of Educational Research and Training (NCE...
Who has been appointed as the chairman of the National Consumer Disputes Redressal Commission?
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