Tag: physics

Quizzes (598) Questions (13441)

Questions Related to physics

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

In Kaiga Atomic Power reactor plant, the fuel that can be used is

  1. Coal

  2. Uranium

  3. Petrol

  4. Natural gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Kaiga Generating Station is a nuclear power generating station situated at Kaiga, near the river Kali, in Uttar Kannada district of Karnataka, India. The plant has been in operation since March 2000 and is operated by the Nuclear Power Corporation of India. The plant is fueled by indigenous Uranium.

Hence correct answer is option B. 

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

The fusion reactions occur at

  1. low pressures

  2. high temperature

  3. extremely high temperature

  4. high temperature and low presences
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is a duplicate of question 423192 testing the same concept. Nuclear fusion requires extremely high temperatures, approximately 100 million degrees Celsius, to overcome the electrostatic repulsion between positively charged nuclei. At such temperatures, matter exists as plasma and nuclei can fuse. The same principle applies here - fusion is a high-temperature process.

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

Nuclear energy may become an important source of energy in the future.
Which one of the following statements about nuclear energy is NOT true?

  1. Large amounts of energy are produced by a small mass of fuel

  2. Nuclear energy has no harmful effects

  3. Nuclear energy produces heat on the sun

  4. Uranium is an important fuel for nuclear energy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nuclear fuels are non-renewable sources of energy and large amount of radioactive materials, which are toxic in nature, are released in the environment which are extremely hazardous to the health of living being for thousands of years. Thus nuclear energy also has some harmful effects.

Whereas the statements given in (A), (C) and (D) are true.

Multiple choice physics energy management electricity from nuclear energy nuclear power nuclear energy

An atom bomb works on :

  1. Electrical energy

  2. Heat energy

  3. Mechanical energy

  4. Atomic energy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Atomic energy 

Atomic energy is the energy that is created by splitting apart the nuclei of atoms.  The atomic energy is released during the process of fission.  The basic principle of atom bomb is uncontrolled nuclear fission. 

Multiple choice physics energy management electricity from nuclear energy nuclear power nuclear energy

The essential distinction between X-rays and $\gamma$-rays is that the $\gamma$-rays :

  1. have greater ionizing power than X-rays

  2. emanate from nucleus, white X-rays emanate from outer part of the atom

  3. have smaller wave-length than X-rays

  4. none of the above 
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A 

Gamma-rays have the highest energy in the EMR spectrum and their waves have the shortest Wavelength. Gamma rays are lot more dangerous and hazardous to human health than X-rays. Moreover gamma rays are the highly penertating and highly energetic ionizing radiation. 

Multiple choice physics energy management electricity from nuclear energy nuclear power nuclear energy

Principle of Hydrogen bomb is .................. reactions.

  1. Uncontrolled fusion

  2. Fission

  3. Controlled fusion

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A hydrogen bomb operates on the principle of uncontrolled nuclear fusion. Unlike fission bombs, which split heavy atoms, fusion bombs release energy by combining light nuclei in a rapid, explosive chain reaction.

Multiple choice physics energy management electricity from nuclear energy nuclear power nuclear energy

Which bomb works on the principle of Nuclear fusion ?

  1. Atom bomb

  2. Hydrogen bomb

  3. Neutron bomb

  4. Nuclear reactor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nuclear fusion is a nuclear reaction in which two or more atomic nuclei at a very high speed and join to form a new type of atomic nucleus. Fusion reactions are high energy reactions in which two lighter atomic  nuclei fuse to form a heavier nucleus. This fusion reaction is taking place in hydrogen bomb.