Basic science
Q.1. Which method can be applied to determine purity of a metal ? A. Boyle's law B. Pascal's law C. Archimedes principle D. Newton's law Ans. Archimedes principle Q.2. The reason behind decrease in the boiling point of water at higher altitudes is A. high temperature B. low temperature C. high atmospheric pressure D. low atmospheric pressure And. Low atmospheric pressure Q.3. Which device is used to measure the wavelength of X-rays A. Framing square B. Bragg Spectrometer C. Manometer D. SWR meter Ans. Bragg Spectrometer Q.4. Which instrument is used to measure atomospheric humidity ? A. Tintometer B. Tacheometer C. Hygrometer D. Thermometer Ans. Hygrometer Q.5. What is the minimum escape velocity of rocket to be launched into space ? A. 4Km/Sec B. 8Km/Sec C. 11Km/Sec D. 13Km/Sec Ans. 11Km/Sec Q.6. Golden view of sea shell is due to : A. Diffraction B. Reflection C. Refraction D. Polarization Ans. Polarisation Q.7. Longitudinal...