Reflection from a smooth surface like that of a mirror is called ___________ reflection.
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Which rays cause skin damage?
Who is called as 'Father of Modern Computer'?
Rakhi got engaged 10 years ago. Rakhi's present age is 5/3 of her age at the time of engagement. If the present age of Rakhi's mother is twice that ofpresent age of Rakhi, then what was her mother's age (in years) at the time of her engagement?
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