This is the 65 section from Everyday Science. These questions and answers will be from Sun, Frequency, Vitamin A, Temperature, Blood Cells, Radioactivity and Electrical Energy.
Ques No.1: The Sun's mass is mainly consist of
Ques No.2: The Sl unit of charge of
Ques No.3: Very High Frequency (VHF) have__________wavelengths.
Ques No.4: Long-sight defect could be corrected by using________lens.
Ques No.5: Deficiency of Vitamin-A results in
Ans: Night blindness
Ques No.6: For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will
Ques No.7: The lifespan of Red Blood Cells is________days.
Ques No.8: The density of water is
Ques No.9: Radioactivity was discovered by
Ques No.10: A device which converts chemical energy into electrical energy is called