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Category: Optics

how-is-the-significant-figures-in-132-32-67-23-566-

Question Number 129103 by Study last updated on 12/Jan/21 $${how}\:{is}\:{the}\:{significant}\:{figures}\:{in} \\ $$$$\mathrm{132}+\mathrm{32}.\mathrm{67}+\mathrm{23}+\mathrm{566}?? \\ $$ Answered by physicstutes last updated on 12/Jan/21 $$\mathrm{number}\:\mathrm{of}\:\mathrm{significant}\:\mathrm{figures}\:\mathrm{in}\:\mathrm{your}\:\mathrm{answer}\:\mathrm{should}\:\mathrm{2} \\ $$$$\mathrm{that}\:\mathrm{correspond}\:\mathrm{to}\:\mathrm{the}\:\mathrm{smallest}\:\mathrm{significant}\:\mathrm{number}. \\…

Question-54357

Question Number 54357 by ajfour last updated on 02/Feb/19 Commented by ajfour last updated on 02/Feb/19 $${Find}\:\boldsymbol{\alpha}\:{such}\:{that}\:{the}\:{ray}\:{of}\:{light} \\ $$$${being}\:{reflected}\:{the}\:{way}\:{shown}, \\ $$$${reaches}\:{C}\:{from}\:{S}. \\ $$$${For}\:{example}\:{lets}\:{take}\:\boldsymbol{{h}}=\frac{\mathrm{5}{R}}{\mathrm{2}} \\ $$$${and}\:\boldsymbol{{b}}=\frac{\mathrm{3}{R}}{\mathrm{2}}.…

1-f-n-1-1-R-1-1-R-2-lense-s-maker-equation-when-is-positive-or-negative-R-1-and-R-2-

Question Number 181256 by sciencestudent last updated on 23/Nov/22 $$\frac{\mathrm{1}}{{f}}=\left({n}−\mathrm{1}\right)\left(\frac{\mathrm{1}}{{R}_{\mathrm{1}} }−\frac{\mathrm{1}}{{R}_{\mathrm{2}} }\right)\:\:{lense}'{s}\:{maker}\:{equation}. \\ $$$${when}\:{is}\:{positive}\:{or}\:{negative}\:{R}_{\mathrm{1}} \:{and}\:\:{R}_{\mathrm{2}} ? \\ $$ Commented by sciencestudent last updated on 24/Nov/22…

write-snell-s-law-that-light-move-a-concentrative-medium-to-nonconcentrative-medium-and-show-with-a-shape-

Question Number 181172 by sciencestudent last updated on 24/Nov/22 $${write}\:{snell}'{s}\:{law}\:{that}\:{light}\:{move}\:{a}\: \\ $$$${concentrative}\:{medium}\:{to}\:{nonconcentrative} \\ $$$${medium}\:{and}\:{show}\:{with}\:{a}\:{shape}. \\ $$ Commented by sciencestudent last updated on 23/Nov/22 $${why}\:{don}'{t}\:{you}\:{answer}\:{me}? \\…

Question-176966

Question Number 176966 by mr W last updated on 28/Sep/22 Commented by mr W last updated on 29/Sep/22 $${is}\:{it}\:{possible}\:{that}\:{a}\:{light}\:{ray}\:{starting} \\ $$$${from}\:{point}\:{O}\:{returns}\:{back}\:{to}\:{the}\:{same} \\ $$$${point}\:{after}\:{being}\:{reflected}\:{at}\:{the} \\ $$$${points}\:{P},\:{Q},\:{R}\:{on}\:{the}\:{three}\:{mirror}…