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Q. Which among the following is used in preparing windows for X-Ray Tubes ?

Q. Which among the following scientists is known for laws of planetary motion?

Q. Which among the following is called Laughing Gas popularly?

Q. Who among the following scientists is known for devising four criteria designed to establish a causal relationship between a causative microbe and a disease?

Q. Which of the following plant growth hormone was recognized by Japanese scientists?

Q. Whenever an alkali metal such as Lithium or Sodium reacts with water , which among the following gas is produced?

Q. What is the name of Indian‘s first satellite launch vehicle?

Q. Which one of the following types of Laser is used in Laser Printers?

Q. The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called?

Q. Consider the following: 1. Near Infrared 2. Mid Infrared 3. Far Infrared Which among the following is the correct order of increasing wavelength of the above?