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- Question
Atoms have no electric charge because they
Options- A. have same number of electrons and neutrons
- B. have same number of electrons and protons
- C. have same number of protons and neutrons
- D. have same number of protons, electrons and neutrons
- Correct Answer
- have same number of electrons and protons
ExplanationAtoms are composed of three main particles called electrons, protons and neutrons. We know that, the electrons are negatively charged particles whereas protons are positively charged and neutrons have no charge.
Hence, as the number of electrons and protons are equal and they are oppositely charged, the atom will have no charge as their charges cancel each other.
- 1. What African-American inventor received 5 patents in the field of shoemaking?
Options- A. Elijah McCoy
- B. Jan Ernst Matzeliger
- C. Ernest Just
- D. Lewis Latimer Discuss
- 2. On whom did the U. S. President George W. Bush bestow, in 2002, the U.S.'s highest award for life time achievement in the field of scientific research?
Options- A. Arun Netravalli
- B. Dr.Hargoving Kohrana
- C. Subramania Chandrasekar
- D. Professor C. Radhakrishna Rao Discuss
- 3. Tripping is associates with
Options- A. Snooker
- B. Volleyball
- C. Football
- D. Cricket Discuss
- 4. Who created Pretty Good Privacy (PGP)?
Options- A. Phil Zimmermann
- B. Tim Berners-Lee
- C. Marc Andreessen
- D. Ken Thompson Discuss
- 5. Vinod Kambli on his Test debut made 28 runs having a strike rate of :
Options- A. 63.58
- B. 46.66
- C. 12.55
- D. 91.07 Discuss
- 6. The National Institute of Community Development is located at
Options- A. Chennai
- B. Pant Nagar
- C. Hyderabad
- D. Bangalore Discuss
- 7. Friction can be reduced by changing from
Options- A. sliding to rolling
- B. rolling to sliding
- C. potential energy to kinetic energy
- D. dynamic to static Discuss
- 8. The R-horizon of soil horizon consists of
Options- A. unweathered bedrock
- B. weathered parent material
- C. plant litter at various levels of decomposition
- D. None of the above Discuss
- 9. In an atomic explosion, enormous energy is released which is due to
Options- A. conversion of chemical energy into heat energy
- B. conversion of mechanical energy into nuclear energy
- C. conversion of mass into energy
- D. conversion of neutrons into protons Discuss
- 10. Crame Trophy Tennis final held in May 2003 was played between
Options- A. Leander Paes and David Rickle
- B. John McEnore and David Rickle
- C. Boris Becker and John McEnroe
- D. Boris Becker and Leander Paes Discuss
More questions
Correct Answer: Jan Ernst Matzeliger
Explanation:
Matzeliger never benefited financially from his inventions. He died in 1889 at the age of 37 from tuberculosis.
Correct Answer: Arun Netravalli
Correct Answer: Football
Correct Answer: Phil Zimmermann
Explanation:
Phil Zimmermann created the first version of PGP encryption in 1991. Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting and decrypting texts, E-mails, files, directories and whole disk partitions to increase the security of e-mail communications.
Correct Answer: 63.58
Explanation:
His footwork was dazzling against the spinners - he once smashed Shane Warne for 22 runs in an over.
Correct Answer: Hyderabad
Correct Answer: sliding to rolling
Correct Answer: unweathered bedrock
Correct Answer: conversion of mass into energy
Correct Answer: Boris Becker and John McEnroe
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