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Who discovered the neutron in an atom?
Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
Who discovered the neutron in an atom?
Which of the following particles has zero charge?
Which of the following carries a negative charge?
An isotope of an atomic nucleus is that nucleus in which-
An alpha particle carries two positive charges. Its mass is approximately equal to that of-
The same kind of atoms are found in which of the following?
Which one of the following is NOT a subatomic particle?
Which of the following particles is chargeless (neutral)?
Which of the following is NOT a constituent particle of an atom?
Atoms which have the same number of protons but different number of neutrons are called-
The constituents of an atomic nucleus are-
The positively charged part of the center of an atom is called -
Which of the following pairs is a particle-antiparticle pair?
An atom of an element has two protons, two neutrons and two electrons. What is the mass number of that element?
With reference to the atom of a chemical element, magnetic quantum number relates to-
Isotopes are atoms of the same element that have-
Recently, the USA decided to support India's membership in multi-lateral export control regimes like the 'Australia Group' and the 'Wassenaar Arrangement'. What is the difference between them? 1. The Australia Group is an informal arrangement aiming to minimize the risk of proliferation of chemical and biological weapons, whereas the Wassenaar Arrangement is a formal group under OECD with similar objectives. 2. The Australia Group participants are predominantly Asian, African, and North American countries, whereas Wassenaar Arrangement members are predominantly EU and American countries. Which of the statements given above is/are correct?
Which of the following is NOT correctly matched?
Which explosive material was used in the bombs dropped on Nagasaki (Japan) in the year 1945?
Match List-I with List-II and select the correct answer using the code given below the lists: List-I List-II A. Dry Ice 1. Treatment of cancer B. Gene Therapy 2. Freezing of living bodies for revival C. Cryonics 3. Solid carbon dioxide D. Cobalt-60 4. Treatment of blood diseases Code:
Which of the following devices is used to cool the engines of motor vehicles?
What are the unique features of the iPhone 4S? Select the correct answer using the code given below: 1. It has 300 hours of standby time. 2. It has 8 hours of talk time on 3G. 3. It has a voice-recognition and conversational assistant. 4. It has 640 MB of RAM. Code:
Which of the following statements is true?
Water jet technology is used in-
Which country experimentally started the first 3D television broadcast?