The known forces of nature can be divided into four classes, viz, gravity electromagnetism, weak nuclear force and strong nuclear force
The known forces of nature can be divided into four classes, viz, gravity electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?(2013) a) Gravity is the strongest of the four b) Electromagnetism act only on particles with an electric charge c) Weak nuclear […]
Which of the above diseases has/have been eradicated in India?
Consider the following diseases 1. Diphtheria 2. Chickenpox 3. Smallpox Which of the above diseases has/have been eradicated in India?(2014) a) 1 and 2 only b) 3 only c) 1, 2 and 3 d) None ANswer: B Smallpox has been eliminated from India and the world.
What is /are the importance/importances of discovering this particle?
The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is /are the importance/importances of discovering this particle? 1. It will enable us to understand as to why elementary particles have mass. 2. It will enable us in the near future to develop the technology to […]
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? 1. Iris scanning 2. Retinal scanning 3. Voice recognition Select the correct answer using the code given below.(2014) a) 1 only b) 2 and 3 only c) 1 and 3 only d) 1, 2 and 3 […]
Which reference to Agni-IV Missile, which of the following statements is/are correct?
Which reference to Agni-IV Missile, which of the following statements is/are correct? 1. It is a surface-to-surface missile. 2. It is fuelled by liquid propellant only. 3. It can deliver one-tonne nuclear warheads about 7500 km away. Select the correct answer using the code given below.(2014) a) 1 only b) 2 and 3 only c) […]
Which of the following statements is / are correct regarding vegetative propagation of plants?
Which of the following statements is / are correct regarding vegetative propagation of plants? 1. Vegetative propagation produces a clonal population. 2. Vegetative propagation helps in eliminating the virus. 3. Vegetative propagation can be practiced most of the year. Select the correct answer using the code given below.(2014) a) 1 only b) 2 and 3 […]
Which of the following pair is/are correctly matched?
Which of the following pair is/are correctly matched? Spacecraft Purpose 1. Cassini-Huygens Orbiting the Venus and transmitting data to the Earth 2. Messenger Mapping and investigating the Mercury 3. Voyager 1 and 2 Exploring the outer […]
What is/are the Implication/ implications of the Creation of Antimatter?
A team of scientists at Brookhaven National Laboratory including those from India created the heaviest antimatter (anti-helium nucleus). What is/are the implication/ implications of the creation of antimatter? 1. It will make mineral prospecting and oil exploration easier and cheaper. 2. It will help probe the possibility of the existence of stars and galaxies made […]
With Reference To Stem Cells frequently in the news, which of the following statements is/are correct?
With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Stem cells can be used for screening new drugs. 3. Stem cells can be used for medical therapies. Select the correct answer using the codes given below (2012) a) […]
What Prevents Them From Reaching the Surface of the Earth?
Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?(2012) a) The Earth’s magnetic field diverts them towards its poles b) Ozone layer around the Earth reflects them back to […]