Description : The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. Energy released in the process of f
Last Answer : The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. ... .27 MeV C. 0.82 MeV D. 2.45 MeV
Last Answer : The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. ... (4) K` D. `3 xx 10^(6) K`
Last Answer : The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. ... kg` D. `16.02 xx 10^(-27) kg`
Description : (3) two light nuclei combine to form a heavy nucleus Explanation: Nuclear fusion is the process of making a single heavy nucleus (part of an atom) from two lighter nuclei. The difference in mass ... . Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.
Last Answer : Helium is added to the oxygen supply of deep sea divers because it is - (1) less poisonous than nitrogen (2) (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure
Description : Pick out the wrong statement. (A) Geothermal energy is a non-conventional source of energy (B) Mass is converted into energy in both nuclear fission & fusion reaction (C) Inhalation of mercury vapour is not harmful for human beings (D) Inhalation of arsenic causes cancer
Last Answer : (C) Inhalation of mercury vapour is not harmful for human beings
Description : Statement-1 : Energy is released in the nuclear fusion of hydrogen nuclei to form helium nuclei Because Statement-2 : Binding energy per nucleon of he
Last Answer : Statement-1 : Energy is released in the nuclear fusion of hydrogen nuclei to form helium nuclei Because ... Statement-2 is false, statement-2 is true
Description : calculate the energy released in the nuclear fusion of isotopes of hydrogen (i) `._(1)^(2)H + ._(1)^(2)H rarr ._(2)^(3)He + ._(0)^(1)n` (ii) `._(1)^(2
Last Answer : calculate the energy released in the nuclear fusion of isotopes of hydrogen (i) `._(1)^(2)H + ._(1)^(2)H rarr . ... ",._(2)^(4)He = 4.00260,am u,):}`
Description : The source of the sun's energy is the process of – (1) Photoelectric emission (2) Nuclear fission (3) Nuclear fusion (4) Thermionic emission
Last Answer : (3) Nuclear fusion Explanation: The Sun formed about 4.6 billion years ago from the gravitational collapse of a region within a large molecular cloud. Most of the matter gathered in the center, ... thermonuclear fusion in its core. It is thought that almost all other stars form by this process.
Description : The source of the Sun's energy is the process of – (1) Photoelectric emission (2) Nuclear fission (3) Nuclear fusion (4) Thermionic emission
Last Answer : (3) Nuclear fusion Explanation: Nuclear fusion is a nuclear reaction in which two or more atomic nuclei join together, or "fuse", to form a single heavier nucleus. During this process, matter ... fusing nuclei is converted to energy which is released. Fusion is the process that powers active stars.
Description : The source of the Sun’s energy is the process of (1) Photoelectric emission (2) Nuclear fission (3) Nuclear fusion (4) Thermionic emission
Last Answer : Nuclear fusion
Description : What regulates the nuclear fusion rate within stars?
Last Answer : Nothing controls the reaction. It is a fusion reactor in meltdown. But just like the centralia Pennsylvania coal fire, it's taking a while burning through all the fuel. Wikipedia The intermediate by products ... hydrogen far more often than form into helium. So I think that's the rate limiting step.
Description : Differentiate between any five of the following: a) Thermoplastics and thermosetting plastics b) Lunar eclipse and solar eclipse c) Asteroid and meteorite d) Renewable and non-renewable energy resources e) Endothermic and exothermic reactions f) Star and planet g) Nuclear fission and nuclear fusion
Last Answer : a) Thermoplastics and thermosetting plastics: Thermoplastics: Thermoplastics can be repeatedly softened by heating and hardened by cooling.Thermoplastic molecules, which are linear or slightly branched, do ... or explode in midair. Remains of meteoroids that reach the surface are called meteorites.
Description : fusion occurs in the _______ of the sun, where the pressure and temperature are very high -General Knowledge
Last Answer : Fusion occurs in the core of the Sun, where the pressure and temperature are very high.
Description : Plutonium Plutonium is used as _____. A. Fuel for Nuclear Fission B. Fuel for Nuclear Fusion C. Source of Chemical Energy D. Source of Light Energy
Last Answer : ANSWER: A
Description : Plutonium is used as _____. A. Fuel for Nuclear Fission B. Fuel for Nuclear Fusion C. Source of Chemical Energy D. Source of Light Energy
Description : Which of the following is an unconventional source of energy? (A) Thermal power (B) Hydroelectric power (C) Nuclear-fusion power (D) Solar power
Last Answer : Option D
Description : A nuclear reactor harnesses nuclear energy by A. Nuclear fusion B. Spontaneous fission C. Uncontrolled chain reaction D. Controlled chain reaction
Last Answer : ANSWER: D
Description : Which of the following reaction is the main cause of energy radiated from Sun? (1) Nuclear fission (2) Nuclear fusion (3) Chemical reaction (4) Diffusion reaction
Last Answer : (2) Nuclear fusion Explanation: The Sun is a main-sequence star, and thus generates its energy bynuclear fusion of hydrogen nuclei into helium. In its core, the Sunfuses 620 million metric tons of hydrogen each second.
Description : The energy emitted by the Sun is due to (1) Chemical reaction (2) Nuclear fission (3) Nuclear fusion (4) All of the above
Last Answer : (3) Nuclear fusion Explanation: The spectrum of the Sun's solar radiation is close to that of a black body with a temperature of about 5,800 K. The Sun emits Electromagnetic radiation across ... converted to lower energy photons before they reach the Sun's surface and are emitted out into space.
Description : Commercial power generation from fusion reactor is not yet possible, because (A) It is difficult to control nuclear fusion reaction (B) The fuel required (i.e., deuterium & tritium) is ... to initiate fusion reaction (D) Quantity of fuel required for initiating fusion reaction is prohibitively high
Last Answer : (A) It is difficult to control nuclear fusion reaction
Description : Name the process of production of energy in the Sun – (1) Nuclear fission (2) Radioactivity (3) Nuclear fusion (4) Ionization
Last Answer : (3) Nuclear fusion Explanation: The source of the sun's fuel is hydrogen and helium gases. Through a special chemical reaction, called nuclear fusion, the hydrogen gas is "burned" releasing an enormous amount of energy in the form of light and heat.
Description : What process produces most of the energy that is radiated by the Sun? w) gravitational contraction x) chemical combustion y) nuclear fusion z) nuclear fission
Last Answer : ANSWER: Y -- NUCLEAR FUSION
Description : Name the process of production of energy in the Sun (1) Nuclear fission (2) Radioactivity (3) Nuclear fusion (4) Ionization
Description : Why enormous energy is released in nuclear reaction?
Last Answer : This is due to the fact that the forces between nucleons arevery strong - much stronger than the forces between atoms in achemical reaction for example.
Description : Pick out the wrong statement: (A) Chemical reactions with high activation energy are very temperature sensitive (B) A flat velocity profile exists in a plug flow reactor (C) The residence ... D) Half life of a reaction increases with increased initial concentration for reaction orders more than one
Last Answer : (C) The residence time for all the elements of fluid in case of a P.F.R. need not be same
Description : Pick out the correct statement. (A) Reactions with high activation energies are very temperature sensitive (B) Chemical equilibrium is a static state (C) A photochemical reaction is catalysed by ... occurs when the energy of the reacting molecule is less than the activation energy of the reaction
Last Answer : (A) Reactions with high activation energies are very temperature sensitive (B) Chemical equilibrium is a static state
Last Answer : The nuclear reaction in which small nuclei combine to form large nuclei is called nuclear fusion reaction.
Description : What is nuclear fusion (atomic fusion reaction)?
Last Answer : A reaction, as in fission, fusion, or radioactive decay, that alters the energy, composition, or structure of an atomic nucleus.
Description : Hydrogen bomb is based upon the principle of ______. (1) Nuclear fission (2) Nuclear fusion (3) Controller nuclear reaction (4) None of these
Last Answer : (2) Nuclear fusion Explanation: The hydrogen bomb eventually relies upon atomic fusion (adding to the atomic nucleus) to release energy. Nuclear fusion is a nuclear reaction in which two or more atomic nuclei ... and then collide at a very high speed and join to form a new type of atomic nucleus.
Description : The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding
Last Answer : (2) Nuclear fission Explanation: Nuclear fission is a process used to create energy. It is when an atom splits apart into smaller atoms. The process gives off a lot of energy, and is used in nuclear weapons and nuclear reactors.
Description : In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear ... reaction C. Fission nuclear reaction D. Fusion nuclear reaction (Answer) E. None of these
Last Answer : D. Fusion nuclear reaction (Answer)
Description : What refers to the strong repulsion between the positively charged nuclei which makes fusion reaction difficult to attain? A. Atomic repulsion B. Nuclear repulsion C. Coulomb repulsion D. Charge repulsion
Last Answer : Coulomb repulsion
Description : What is energy released from stars?
Last Answer : nuclear energy. in stars every few microseconds there a nuclearfusion that is almost equivalent to the energy released by anatomic bomb.
Description : The basic process taking place in nuclear reactors is - (1) Radioactivity (2) Fission (3) Fusion (4) None of the above
Last Answer : (2) Fission Explanation: A nuclear reactor produces and controls the re-lease of energy from splitting the atoms of uranium, known as nuclear fission. When a fissile atomic nucleus such as uranium235 ... process produces free neutrons and gamma pho-tons, and releases a very large amount of energy.
Description : The basic process taking place in nuclear reactors is (1) Radioactivity (2) Fission (3) Fusion (4) None of the above
Last Answer : Fission
Description : What Processes depend on fusion Check all that apply. A.energy production in the sun B.energy production in nuclear reactors C.the hydrogen bomb D.energy production from fuel cells?
Last Answer : It's A and C. The sun and most other stars are fusion reaction engines, and hydrogen bomb (perhaps more properly a fusion nuclear weapon) apply nuclear fusion to do what they do.
Last Answer : Need answer
Description : The escape velocity from the earth’s surface is about 1. 30 km/sec 2. 6 km/sec 3. 11.2 km/sec 4. 300 km/sec 15. The radiant energy of the sun is due to (a) Nuclear fission (b) Nuclear fusion (c) Sinking of the sun (d) Violent explosions
Last Answer : Ans:(c)
Description : Energy is continuously generated in the sun due to _______. (1) Nuclear fusion (2) Nuclear fission (3) Radioactivity (4) Artificial radioactivity
Last Answer : (1) Nuclear fusion Explanation: Nuclear fusion is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus.
Description : The energy of the sun is mainly due to (1) nuclear fission (2) radioactivity (3) heat (4) nuclear fusion
Last Answer : (4) nuclear fusion Explanation: The Sun is a main-sequence star, and thus generates its energy by nuclear fusion of hydrogen nuclei into helium. Nuclear fusion is a nuclear reaction in which two ... the fusing nuclei is converted to photons which are released through a cycle that even our sun uses.
Description : Energy is continuously created in the sun due to – (1) Nuclear fusion (2) Nuclear fission (3) Radioactivity (4) Artificial radioactivity
Last Answer : (1) nuclear fusion Explanation: The central mass of the sun becomes increasingly hot and dense. eventually initiating thermonuclear fusion in its core. It is thought that almost all other stars form ... because some of the mass of the fusing nuclei is converted to energy which is released.
Description : The Sun produces most of its energy by-------? A. Nuclear fusion (Answer) B. nuclear fission C. Burning hydrogen D. None of these
Last Answer : A. Nuclear fusion (Answer)
Description : Which of the following energy technologies is not utilized for power generation today? w) Nuclear Fission x) Solar Ponds y) Geothermal Power z) Nuclear Fusion
Last Answer : ANSWER: Z -- NUCLEAR FUSION
Last Answer : nuclear fusion
Description : Energy is continuously created in the sun due to: (1) nuclear fusion (2) nuclear fission (3) radioactivity (4) artificial radioactivity
Description : Fusion reactions which take place at very high temperature are called
Last Answer : thermonuclear fusion reactions.