Two identical balls are allowed to fall from different heights 1 and 2 H Work done while reaching the ground is in the ratio
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In newton's rings experiment,diameter of 10th dark ring formed by light of wavelength 6000A is 0.3 cm.Calculate the radius for the lens.Amina went to a stationery store to buy pairs of pencils. Each pencil cost *3.25. For every 2 pencils that she bought, she also bought an eraser worth *2 and a sharpener worth *3. She would buy the two pencils only if she could also buy the eraser and sharpener. If she had 25 with her, how many pencils, erasers, and sharpeners did she buy
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