SOME QUESTIONS AND THEIR ANSWERS FOR UPSC AND GPSC
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| SOME SCIENCE QUESTIONS AND THEIR ANSWERS FOR UPSC AND GPSC |
I am glad to know that you liked my post – Interesting things related to science. Today I am going to tell you about those Science questions which have been asked or can be asked in UPSC Mains. You have to answer these questions in one line or in 150-200 words. Let us see some such questions and their answers.
Tabal Of Contain
Q1. What is Nuclear Medicine?
Q1. What is Nuclear Medicine?
“Nuclear Medicine” is actually that branch of medicine, that branch….which is used in the identification of diseases, treatment of diseases to a large extent and investigative use of radionuclides. Radioactive substances are used for this. Using nuclear imaging technology, the functioning of various organs of the body can be seen from above. With the help of this, the doctor operating a person on the operation table can know the real status of the functioning of various parts of the human body.
X-ray is being used for many years for the identification of diseases. Radioactive isotopes are used to get a picture of different organs and their functioning. Tumors can also be detected with the help of Infrared Radiation emanating from the human body. Cancer and other diseases arising out of it are treated by ionizing radiation.
Q2. How does a fluorescent tube work?
The walls inside the fluorescent tube are covered with a mixture of Magnesium Tungsten and Zinc Beryllium Silicate. Due to the discharge of electricity, ultraviolet rays are generated in this drain. When exposed to these rays, Magnesium Tungsten glows a pale blue and Zinc Beryllium Silicate produces a yellow-orange glow. The mixture of light of these two colors produces the fluorescence of white light. Different types of paints are used inside the drain, which generate light of different colors. Ultraviolet rays are invisible which collide with the paint to produce visible light.
Q3. What is lead free petrol?
Smoke from petrol-powered cars contains carbon monoxide, hydrocarbons, and oxides of sulfur and nitrogen. Lead is added to petrol in India to increase fuel efficiency and increase its anti-knocking properties. This lead comes out with car smoke in the form of small particles and gets absorbed in the atmosphere. Later this lead enters the person's body along with the air and makes him sick. Adding tetraethyl lead to petrol, including lead, increases the octane level, but this lead comes out in the form of lead oxide, then pollutes the air, which becomes a threat to human life.
Q4. Write about rocket fuel.
No one is unfamiliar with rockets today. It was through rockets that Russian scientist Yuri Gargin surprised the whole world by traveling to space in 1961. On the other hand, in the year 1969, American American Neil Armstrong achieved another new achievement in the field of science by reaching the Moon. The Indian space program was started in 1975 by SLV. - Caused by the launch of 3. The fuel used in rockets is called propeller. This propeller is formed by the combination of oxidizers such as – fluid oxygen, fluid florin, hydrogen peroxide, nitric acid etc. All propellers are placed in three classes – liquid, solid, mixed…
Q5. What is ELISA? What is it used for?
ELISA Enzyme Liked Immunoassy is an HIV-1 antibody and is used to test for HIV infection in patients with AIDS (Acquired Immune Deficiency Syndrome).
