A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
1 3326According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion
1 8259The dark lines in the solar spectrum are due to 1 Absorption of corresponding wavelengths by the prism used in he spectrograph 2 Destructive interference between waves of certain definite wavelengths 3 Absorption of corresponding wavelengths by the outer layers of the sun 4 None of these
1 6994The correct sequence of various regions I absorption spectrum is 1 Visible, ultraviolet, microwave, infra red 2 Infra red, gamma rays, ultraviolet, microwave 3 Ultra violet, visible, infra red, microwave 4 None of these
CPSE,
1 5800‘No two electrons in an atom can have the same set of four quantum numbers’ is 1 Bohr’s law 2 Aufbau principle 3 Newton’s law 4 Pauli’s exclusion principle
1 7495Enriched uranium used in a nuclear reactor is 1 Uranium freed of all impurities 2 Uranium treated with radiation 3 Uranium alloyed with aluminum 4 Uranium with a high percentage of a particular isotope
1 4141The main important feature of neutron bomb is that when it is dropped on a city, it would damage 1 Both the living organisms and buildings 2 The buildings but not the living organisms 3 The living organisms but spare buildings 4 None of these
GTY, Indian Railways, Option 3, RRB, RRC Railway Recruitment Cell,
3 12101Which of the following shows the masses of three elementary particles in decreasing order? 1 Mesons, Baryons, Leptons 2 Leptons, Baryons, Mesons 3 Baryons, Mesons, Leptons 4 Leptons, Mesons, Baryons
1 5356The neutral atom’s two isotopes differ in the number of 1 Electron shells 2 Protons 3 Valence electrons 4 Neutrons
1 5396Optic fibers are mainly used for which of the following? 1 Communication 2 Weaving 3 Musical instruments 4 Eye surgery
1 4253Gypsum is added to cement clinker to 1 Increase the tensile strength of cement 2 Bind the particles of calcium silicate 3 Decrease the rate of setting of cement 4 Facilitate the formation of colloidal gel
3 17375Post New General Science Questions
meron po bang minerals ang astoroids po ba?
When and where was the first experimental atomic explosion took place?
When did india conduct three under ground nuclear tests?
What are the important factors of cosmic rays?
In which year, atmospheric observations using balloons started?
Names of some plants and trees that sleep during the day
What is the speed of arihant?
Arihant was commissioned on which day?
Explain the Aesthetic and Moral values of Science
List out the General Objectives of teaching Physical science at Primary stages.
What are cosmic rays?
what the defference from anti virus and spyware and adware also? Please descript?
iwant to learn robotics so how can iproceed
When did the most luminous nova appear?
Who discovered radio telescope?