Who discovered radio telescope?
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Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these
Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume
Which of the following types of photons has the highest energy? 1 Visible radiations 2 Radio waves 3 Gamma rays 4 X-rays
What are luminous irregular nebulae?
Why we use nhexane inplace of hexane in mobilepase preparation
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
in earth 1degree equals how many kilo meters?
Which of the following materials are used for preparing blur-black ink? 1 Gallic acid 2 Tannic acid 3 Ferrous sulphate 4 All of these
What is the cytology ?
What is super nova?
When was the first rocket launched from thumba?
0.005M K2Cr2O7 solution for calibration of UV.why 0.005M K2Cr2O7?