Who of the following scientists proved that the stars with mass less than 1.44 times the mass of the Sun end up as White Dwarfs when they die?

Consider the following statements: 1. A widely used musical scale called diatonic scale has seven frequencies. 2. The frequency of the note Sa is 256 Hz and that of Ni is 512 Hz. Which of the stateme…

Which one of the following devices is used to cool the engine of the vehicles?

Scientists have observed the merger of giant 'blackholes' billions of light-years away from the Earth. What is the significance of this observation?

Which of the following pairs is/are correctly matched? Theory/Law : Associated Scientist 1. Continental Drift : Edwin Hubble 2. Expansion of Universe : Alfred Wegener 3. Photoelectric Effect : Albert…

Consider the following phenomena: 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-time. Which of the above is/are the prediction/predic…