Physics - Single MCQs (Page 56)

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Q551. Optic fibres are mainly used for which of the following ?...Q552. In which one among the following is the speed of sound maximum?...Q553. Who discovered Penicillin?...Q554. Which chemical element is represented by the symbol Zn?...Q555. Which rare element would you associate with Marie and Pierre Curie?...Q556. What is the study of plants called?...Q557. In a sitar wire which one of the following types of vibration is produced?...Q558. The wavelength of X-rays is of the order of ?...Q559. A moderator is used in nuclear reactors in order to?...Q560. Mesons are found in?...